From 221067e1815791aba2754046981394c2e16ce565 Mon Sep 17 00:00:00 2001
From: Rike-Benjamin Schuppner <rikebs@debilski.de>
Date: Fri, 22 May 2015 13:40:49 +0200
Subject: [PATCH 1/5] WIP: Tornado-based IPython version.

---
 Pelita.ipynb                                  | 15254 ++++++++++++++++
 pelita/ipython/__init__.py                    |   152 +
 pelita/ipython/_static/index.html             |    59 +
 pelita/ipython/_static/pelita-canvas.coffee   |   118 +
 .../ipython/_static/processing-1.3.6.min.js   |    13 +
 pelita/ipython/index.html                     |     0
 6 files changed, 15596 insertions(+)
 create mode 100644 Pelita.ipynb
 create mode 100644 pelita/ipython/__init__.py
 create mode 100644 pelita/ipython/_static/index.html
 create mode 100644 pelita/ipython/_static/pelita-canvas.coffee
 create mode 100644 pelita/ipython/_static/processing-1.3.6.min.js
 create mode 100644 pelita/ipython/index.html

diff --git a/Pelita.ipynb b/Pelita.ipynb
new file mode 100644
index 000000000..a90658eb1
--- /dev/null
+++ b/Pelita.ipynb
@@ -0,0 +1,15254 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "%load_ext autoreload\n",
+    "%autoreload 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "import pelita.ipython"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Listening on 0.0.0.0, port 51785\n"
+     ]
+    }
+   ],
+   "source": [
+    "application, sockets = pelita.ipython.printit()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'ipc:///tmp/pelita.139668139983872'"
+      ]
+     },
+     "execution_count": 3,
+     "metadata": {},
+     "output_type": "execute_result"
+    },
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "WARNING:tornado.access:404 GET /favicon.ico (127.0.0.1) 8.05ms\n"
+     ]
+    }
+   ],
+   "source": [
+    "application.path"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false,
+    "scrolled": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "WebSocket closed\n",
+      "http://0.0.0.0:51785/static/index.html\n"
+     ]
+    },
+    {
+     "data": {
+      "text/html": [
+       "\n",
+       "        <iframe\n",
+       "            width=\"600\"\n",
+       "            height=\"300\"\n",
+       "            src=\"http://0.0.0.0:51785/static/index.html\"\n",
+       "            frameborder=\"0\"\n",
+       "            allowfullscreen\n",
+       "        ></iframe>\n",
+       "        "
+      ],
+      "text/plain": [
+       "<IPython.lib.display.IFrame at 0x7f0706c85d68>"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "from IPython.display import IFrame\n",
+    "url = \"http://%s:%i/static/index.html\" % sockets[0].getsockname()\n",
+    "print(url)\n",
+    "IFrame(url, width=600, height=300)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "WebSocket opened\n"
+     ]
+    }
+   ],
+   "source": [
+    "from subprocess import Popen"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "WebSocket opened\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "<subprocess.Popen at 0x7f0706ddabe0>"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    },
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n",
+      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
+      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
+      "Traceback (most recent call last):\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
+      "    raise_exc_info((type, value, traceback))\n",
+      "  File \"<string>\", line 3, in raise_exc_info\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
+      "    ret = fn(*args, **kwargs)\n",
+      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
+      "    self.write_message(data_json)\n",
+      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
+      "    raise WebSocketClosedError()\n",
+      "tornado.websocket.WebSocketClosedError\n"
+     ]
+    }
+   ],
+   "source": [
+    "Popen([\"/home/schuppner/Projects/pelita/pelitagame\", \"--null\", \"--publish\", application.path])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Listening on 0.0.0.0, port 36979\n"
+     ]
+    }
+   ],
+   "source": [
+    "application2, sockets2 = pelita.ipython.printit()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "\n",
+       "        <iframe\n",
+       "            width=\"800\"\n",
+       "            height=\"500\"\n",
+       "            src=\"http://0.0.0.0:36979/static/index.html\"\n",
+       "            frameborder=\"0\"\n",
+       "            allowfullscreen\n",
+       "        ></iframe>\n",
+       "        "
+      ],
+      "text/plain": [
+       "<IPython.lib.display.IFrame at 0x7f7353facc88>"
+      ]
+     },
+     "execution_count": 12,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "IFrame(\"http://%s:%i/static/index.html\" % sockets2[0].getsockname(), width=800, height=500)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "<subprocess.Popen at 0x7f7353fb9ba8>"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "Popen([\"/home/schuppner/Projects/pelita/pelitagame\", \"--null\", \"--publish\", application2.path])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.4.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}
diff --git a/pelita/ipython/__init__.py b/pelita/ipython/__init__.py
new file mode 100644
index 000000000..79729c892
--- /dev/null
+++ b/pelita/ipython/__init__.py
@@ -0,0 +1,152 @@
+# -*- coding: utf-8 -*-
+
+import tornado.websocket
+import tornado.httpserver
+import tornado.ioloop
+import tornado.netutil
+import tornado.web
+
+import socket
+
+import zmq
+from zmq.eventloop.zmqstream import ZMQStream
+
+from IPython.core.display import HTML
+import os
+
+from ..messaging.json_convert import json_converter
+from ..datamodel import Wall, Food
+
+import json
+
+class WebWrapper:
+    def __init__(self):
+        pass
+
+    def show(self):
+        pass
+
+
+
+class ZMQPubSub:
+    def __init__(self, callback):
+        self.callback = callback
+
+    def connect(self, path):
+        self.context = zmq.Context()
+        self.socket = self.context.socket(zmq.SUB)
+        self.socket.connect(path)
+        self.stream = ZMQStream(self.socket)
+        self.stream.on_recv(self.callback)
+
+    def subscribe(self, channel_id):
+        self.socket.setsockopt_string(zmq.SUBSCRIBE, "")
+
+class Application(tornado.web.Application):
+    def __init__(self):
+        self.path = 'ipc:///tmp/pelita.%i' % id(self)
+        handlers = [
+            (r"/", HomePageHandler),
+            (r"/static/(.*)", tornado.web.StaticFileHandler, {'path': os.path.join(os.path.dirname(__file__), '_static')}),
+            (r"/ws-echo", EchoWebSocket, {'path': self.path})
+        ]
+        tornado.web.Application.__init__(self, handlers, debug=True)
+
+# Handle the home page/index request.
+# @route("/").
+class HomePageHandler(tornado.web.RequestHandler):
+    def get(self):
+        #       self.render("index.html")
+        self.render_string("index.html")
+        self.write("hi")
+
+class EchoWebSocket(tornado.websocket.WebSocketHandler):
+
+
+    def initialize(self, path):
+        self.path = path
+        self._walls = None
+
+    def check_origin(self, origin):
+        return True
+
+    def open(self):
+        self.pubsub = ZMQPubSub(self.on_data)
+        self.pubsub.connect(self.path)
+        self.pubsub.subscribe("")
+
+        print("WebSocket opened")
+
+    def on_message(self, message):
+        pass
+        # self.write_message(u"You said: " + message)
+
+    def on_close(self):
+        print("WebSocket closed")
+
+    def on_data(self, data):
+        msg_objs = json_converter.loads(data[0].decode())
+
+        data = msg_objs.get("__data__") or {}
+
+        universe = data.get("universe")
+        game_state = data.get("game_state")
+        if universe:
+
+            self._walls = []
+            for y in range(universe.maze.height):
+                for x in range(universe.maze.width):
+                    if Wall in universe.maze[x, y]:
+                        self._walls.append("#")
+                    elif Food in universe.maze[x, y]:
+                        self._walls.append(".")
+                    else:
+                        self._walls.append(" ")
+
+            self._walls = "".join(self._walls)
+
+            food = []
+            for x in range(universe.maze.width):
+                col = []
+                for y in range(universe.maze.height):
+                    col += [Food in universe.maze[x, y]]
+                food.append(col)
+
+            width = universe.maze.width
+            height = universe.maze.height
+
+            bots = []
+            for bot in universe.bots:
+                bot_data = bot.current_pos
+                bots.append(bot_data)
+
+            teams = [{"name": t.name, "score": t.score} for t in universe.teams]
+
+            data = {'walls': self._walls,
+                    'width': width,
+                    'height': height,
+                    'bots': bots,
+                    'food': food,
+                    'teams': teams,
+                    'state': game_state
+                    }
+            data_json = json.dumps(data)
+            # print data_json
+            self.write_message(data_json)
+
+
+IFRAME = """
+
+"""
+
+def printit():
+    application = Application()
+    sockets = tornado.netutil.bind_sockets(0, '', family=socket.AF_INET)
+    server = tornado.httpserver.HTTPServer(application)
+    server.add_sockets(sockets)
+
+    for s in sockets:
+        print('Listening on %s, port %d' % s.getsockname()[:2])
+
+#    tornado.ioloop.IOLoop.current().start()
+    return application, sockets
diff --git a/pelita/ipython/_static/index.html b/pelita/ipython/_static/index.html
new file mode 100644
index 000000000..8a5385b7c
--- /dev/null
+++ b/pelita/ipython/_static/index.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <head><meta content="text/html; charset=UTF-8" http-equiv="content-type" /><title>Pelita</title>
+    <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
+
+    <script type="text/javascript" src="http://coffeescript.org/extras/coffee-script.js"></script>
+    <script type="text/coffeescript" src="pelita-canvas.coffee"></script>
+  </head>
+  <body>
+    <div id="main">
+
+      <article class="match">
+        <header>
+          <h3><i class="match-state"></i><span class="teamA">Team A</span> <span>:</span> <span class="teamB">Team B</span></h3>
+          <h4><span class="scoreA">Score A</span> <span>:</span> <span class="scoreB">Score B</span></h4>
+        </header>
+        <canvas class="live-canvas"></canvas>
+      </article>
+
+      <script type="text/javascript">
+          var loc = window.location, ws_uri;
+          ws_uri = (loc.protocol === "https:") ? "wss:" : "ws:";
+          ws_uri += "//" + loc.host;
+          ws_uri += "/ws-echo";
+
+          var ws = new WebSocket(ws_uri);
+          ws.onmessage = function(event) {
+            data = JSON.parse(event.data);
+
+            walls = data.walls;
+            food = data.food;
+            state = data.state;
+            teams = data.teams;
+
+            createMaze($(".live-canvas"), data.width, data.height, walls, data.bots);
+          };
+
+        var ws_status = $("#ws_status");
+        ws.onerror = function(event) {
+          ws_status.addClass("label-warning");
+          ws_status.removeClass("label-success");
+          ws_status.text("Websocket error");
+        };
+
+        ws.onopen = function(event) {
+          ws_status.addClass("label-success");
+          ws_status.removeClass("label-warning");
+          ws_status.text("Connected to " + ws_uri);
+        };
+
+        ws.onclose = function(event) {
+          ws_status.removeClass("label-success");
+          ws_status.removeClass("label-warning");
+          ws_status.text("Connection closed");
+        };
+      </script>
+    </div>
+  </body>
+</html>
diff --git a/pelita/ipython/_static/pelita-canvas.coffee b/pelita/ipython/_static/pelita-canvas.coffee
new file mode 100644
index 000000000..8d8bfd795
--- /dev/null
+++ b/pelita/ipython/_static/pelita-canvas.coffee
@@ -0,0 +1,118 @@
+
+CanvasRenderingContext2D::roundRect = (x, y, w, h, r) ->
+  r = w / 2 if (w < 2 * r)
+  r = h / 2 if (h < 2 * r)
+  this.beginPath()
+  this.moveTo(x+r, y)
+  this.arcTo(x+w, y,   x+w, y+h, r)
+  this.arcTo(x+w, y+h, x,   y+h, r)
+  this.arcTo(x,   y+h, x,   y,   r)
+  this.arcTo(x,   y,   x+w, y,   r)
+  this.closePath()
+  this
+
+
+this.Maze = class Maze
+
+  constructor: (@canvas, @width, @height, @maze, @bot_positions) ->
+    #@width ?= @canvas.data("maze-width")
+    #@height ?= @canvas.data("maze-height")
+    #@maze ?= @canvas.data("maze-walls")
+    #@bot_positions ?= @canvas.data("maze-bot-positions")
+
+    @canvas.data("maze-width", @width)
+    @canvas.data("maze-height", @height)
+    @canvas.data("maze-walls", @maze)
+    @canvas.data("maze-bot-positions", @bot_positions)
+
+    @ctx = @canvas[0].getContext "2d"
+
+    @defaultScale = 12
+
+    @scale = @canvas[0].height / @height
+
+    @ctx.fillStyle = '#FFEECC'
+    @ctx.fillRect(0, 0, @width * @scale, @height * @scale)
+
+    @ctx.strokeStyle = '#fa00ff'
+    @ctx.lineWidth = 5
+    @ctx.lineCap = 'round'
+
+    @ctx.fillStyle = "#44BBDD" # "rgba(0, 0, 255, .5)"
+
+  scaleX: (x) ->
+    @scale + @scale * x
+
+  scaleY: (y) ->
+    @scale + @scale * y
+
+  get_wall: (i, j) ->
+    return false if i < 0 or j < 0 or i >= @width or j >= @height
+    "#" in @maze[j * @width + i]
+
+  line_to: (x, y, x2, y2) ->
+    #@ctx.roundRect(x1, y1, x2, y2, 1)
+    w = x2 - x
+    h = y2 - y
+    r = 2
+    r = w / 2 if (w < 2 * r)
+    r = h / 2 if (h < 2 * r)
+    @ctx.beginPath()
+    @ctx.moveTo(x+r, y)
+    @ctx.arcTo(x+w, y,   x+w, y+h, r)
+    @ctx.arcTo(x+w, y+h, x,   y+h, r)
+    @ctx.arcTo(x,   y+h, x,   y,   r)
+    @ctx.arcTo(x,   y,   x+w, y,   r)
+    @ctx.closePath()
+    @ctx
+
+  draw_food: (i, j) ->
+    @ctx.save()
+    @ctx.lineWidth = @scale / 12
+    @ctx.fillStyle = '#ee8811' #'#FF7766'
+    @ctx.strokeStyle = '#ee8811' # '#FF7766'
+    @ctx.beginPath()
+    @ctx.arc((i + 0.5) * @scale, (j + 0.5) * @scale, @scale / 4.0, 0 , 2 * Math.PI, false)
+    @ctx.fill()
+    #@ctx.stroke()
+    @ctx.closePath()
+    @ctx.restore()
+    @ctx
+
+  draw_bot: (idx, i, j) ->
+    @ctx.save()
+    @ctx.lineWidth = @scale / 6
+    @ctx.fillStyle = '#FFEECC' #'#FF7766'
+    if idx % 2 == 0
+      @ctx.strokeStyle = '#44BBDD'
+    else
+      @ctx.strokeStyle = '#FF7766'
+    # @ctx.strokeStyle = '#FF7766'
+    @ctx.beginPath()
+    @ctx.arc((i + 0.5) * @scale, (j + 0.5) * @scale, @scale / 3.0, 0 , 2 * Math.PI, false)
+    @ctx.fill()
+    @ctx.stroke()
+    @ctx.closePath()
+    @ctx.restore()
+    @ctx
+
+  draw: ->
+    if @bot_positions
+      for bot, idx in @bot_positions
+        @draw_bot(idx, bot...)
+    for i in [0 ... @width]
+      if i < @width / 2
+        @ctx.fillStyle = '#44BBDD'
+      else
+        @ctx.fillStyle = '#FF7766'
+      for j in [0 ... @height]
+        if @get_wall(i, j)
+          #@ctx.roundRect(i * @scale, j * @scale, @scale, @scale, 2)
+          #@ctx.fill()
+          @ctx.fillRect(i * @scale, j * @scale, @scale, @scale)
+        if "." in @maze[j * @width + i]
+          @draw_food(i, j)
+    return
+
+this.createMaze = (args...) ->
+  new Maze(args...).draw()
diff --git a/pelita/ipython/_static/processing-1.3.6.min.js b/pelita/ipython/_static/processing-1.3.6.min.js
new file mode 100644
index 000000000..fc5e794e4
--- /dev/null
+++ b/pelita/ipython/_static/processing-1.3.6.min.js
@@ -0,0 +1,13 @@
+/***
+
+    P R O C E S S I N G . J S - 1.3.6
+    a port of the Processing visualization language
+
+    Processing.js is licensed under the MIT License, see LICENSE.
+    For a list of copyright holders, please refer to AUTHORS.
+
+    http://processingjs.org
+
+***/
+
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powerfactor;  vec3 VP = light.position - ecPos;   vec3 ldir = normalize( -light.direction );  float d = length( VP );  VP = normalize( VP );  float attenuation = 1.0 / ( falloff[0] + ( falloff[1] * d ) + ( falloff[2] * d * d ) );  float spotDot = dot( VP, ldir );"+(bx?"  spotAttenuation = 1.0; ":"  if( spotDot > cos( light.angle ) ) {    spotAttenuation = pow( spotDot, light.concentration );  }  else{    spotAttenuation = 0.0;  }  attenuation *= spotAttenuation;")+"  float nDotVP = max( 0.0, dot( vertNormal, VP ));  vec3 halfVector = normalize( VP - normalize(ecPos) );  float nDotHV = max( 0.0, dot( vertNormal, halfVector ));  if( nDotVP == 0.0 ) {    powerfactor = 0.0;  }  else {    powerfactor = pow( nDotHV, shininess );  }  spec += specular * powerfactor * attenuation;  col += light.color * nDotVP * attenuation;}void main(void) {  vec3 finalAmbient = vec3( 0.0, 0.0, 0.0 );  vec3 finalDiffuse = vec3( 0.0, 0.0, 0.0 );  vec3 finalSpecular = vec3( 0.0, 0.0, 0.0 );  vec4 col = color;  if(color[0] == -1.0){    col = aColor;  }  vec3 norm = normalize(vec3( normalTransform * vec4( Normal, 0.0 ) ));  vec4 ecPos4 = view * model * vec4(Vertex,1.0);  vec3 ecPos = (vec3(ecPos4))/ecPos4.w;  if( lightCount == 0 ) {    frontColor = col + vec4(mat_specular,1.0);  }  else {    for( int i = 0; i < 8; i++ ) {      Light l = getLight(i);      if( i >= lightCount ){        break;      }      if( l.type == 0 ) {        AmbientLight( finalAmbient, ecPos, l );      }      else if( l.type == 1 ) {        DirectionalLight( finalDiffuse, finalSpecular, norm, ecPos, l );      }      else if( l.type == 2 ) {        PointLight( finalDiffuse, finalSpecular, norm, ecPos, l );      }      else {        SpotLight( finalDiffuse, finalSpecular, norm, ecPos, l );      }    }   if( usingMat == false ) {     frontColor = vec4(       vec3(col) * finalAmbient +       vec3(col) * finalDiffuse +       vec3(col) * finalSpecular,       col[3] );   }   else{     frontColor = vec4(        mat_emissive +      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d7=dz.locations[d9];if(d7===r){d7=d4.getUniformLocation(d8,eb);dz.locations[d9]=d7}if(d7!==null){if(ea.length===4){d4.uniform4iv(d7,ea)}else{if(ea.length===3){d4.uniform3iv(d7,ea)}else{if(ea.length===2){d4.uniform2iv(d7,ea)}else{d4.uniform1i(d7,ea)}}}}}function a5(eb,d9,ec,ea,d8){var d7=dz.locations[eb];if(d7===r){d7=d4.getUniformLocation(d9,ec);dz.locations[eb]=d7}if(d7!==-1){if(d8.length===16){d4.uniformMatrix4fv(d7,ea,d8)}else{if(d8.length===9){d4.uniformMatrix3fv(d7,ea,d8)}else{d4.uniformMatrix2fv(d7,ea,d8)}}}}function db(eb,d9,ec,d8,ea){var d7=dz.attributes[eb];if(d7===r){d7=d4.getAttribLocation(d9,ec);dz.attributes[eb]=d7}if(d7!==-1){d4.bindBuffer(d4.ARRAY_BUFFER,ea);d4.vertexAttribPointer(d7,d8,d4.FLOAT,false,0,0);d4.enableVertexAttribArray(d7)}}function cf(d9,d8,ea){var d7=dz.attributes[d9];if(d7===r){d7=d4.getAttribLocation(d8,ea);dz.attributes[d9]=d7}if(d7!==-1){d4.disableVertexAttribArray(d7)}}var bC=function(d9,eb,d8){var ec=d9.createShader(d9.VERTEX_SHADER);d9.shaderSource(ec,eb);d9.compileShader(ec);if(!d9.getShaderParameter(ec,d9.COMPILE_STATUS)){throw d9.getShaderInfoLog(ec)}var ea=d9.createShader(d9.FRAGMENT_SHADER);d9.shaderSource(ea,d8);d9.compileShader(ea);if(!d9.getShaderParameter(ea,d9.COMPILE_STATUS)){throw d9.getShaderInfoLog(ea)}var d7=d9.createProgram();d9.attachShader(d7,ec);d9.attachShader(d7,ea);d9.linkProgram(d7);if(!d9.getProgramParameter(d7,d9.LINK_STATUS)){throw"Error linking shaders."}return d7};var aV=function(d7,eb,d8,ea,d9){return{x:d7,y:eb,w:d8,h:ea}};var bh=aV;var b0=function(d7,eb,d8,ea,d9){return{x:d7,y:eb,w:d9?d8:d8-d7,h:d9?ea:ea-eb}};var aL=function(d7,eb,d8,ea,d9){return{x:d7-d8/2,y:eb-ea/2,w:d8,h:ea}};var dp=function(){};var bO=function(){};var by=function(){};var b9=function(){};bO.prototype=new dp;bO.prototype.constructor=bO;by.prototype=new dp;by.prototype.constructor=by;b9.prototype=new dp;b9.prototype.constructor=b9;dp.prototype.a3DOnlyFunction=E;var ck={};var bN=cV.Character=function(d7){if(typeof d7==="string"&&d7.length===1){this.code=d7.charCodeAt(0)}else{if(typeof d7==="number"){this.code=d7}else{if(d7 instanceof bN){this.code=d7}else{this.code=NaN}}}return ck[this.code]===r?ck[this.code]=this:ck[this.code]};bN.prototype.toString=function(){return String.fromCharCode(this.code)};bN.prototype.valueOf=function(){return this.code};var M=cV.PShape=function(d7){this.family=d7||0;this.visible=true;this.style=true;this.children=[];this.nameTable=[];this.params=[];this.name="";this.image=null;this.matrix=null;this.kind=null;this.close=null;this.width=null;this.height=null;this.parent=null};M.prototype={isVisible:function(){return this.visible},setVisible:function(d7){this.visible=d7},disableStyle:function(){this.style=false;for(var d8=0,d7=this.children.length;d8<d7;d8++){this.children[d8].disableStyle()}},enableStyle:function(){this.style=true;for(var d8=0,d7=this.children.length;d8<d7;d8++){this.children[d8].enableStyle()}},getFamily:function(){return this.family},getWidth:function(){return this.width},getHeight:function(){return this.height},setName:function(d7){this.name=d7},getName:function(){return this.name},draw:function(){if(this.visible){this.pre();this.drawImpl();this.post()}},drawImpl:function(){if(this.family===0){this.drawGroup()}else{if(this.family===1){this.drawPrimitive()}else{if(this.family===3){this.drawGeometry()}else{if(this.family===21){this.drawPath()}}}}},drawPath:function(){var d9,d8;if(this.vertices.length===0){return}cV.beginShape();if(this.vertexCodes.length===0){if(this.vertices[0].length===2){for(d9=0,d8=this.vertices.length;d9<d8;d9++){cV.vertex(this.vertices[d9][0],this.vertices[d9][1])}}else{for(d9=0,d8=this.vertices.length;d9<d8;d9++){cV.vertex(this.vertices[d9][0],this.vertices[d9][1],this.vertices[d9][2])}}}else{var d7=0;if(this.vertices[0].length===2){for(d9=0,d8=this.vertexCodes.length;d9<d8;d9++){if(this.vertexCodes[d9]===0){cV.vertex(this.vertices[d7][0],this.vertices[d7][1]);if(this.vertices[d7]["moveTo"]===true){a7[a7.length-1]["moveTo"]=true}else{if(this.vertices[d7]["moveTo"]===false){a7[a7.length-1]["moveTo"]=false}}cV.breakShape=false;d7++}else{if(this.vertexCodes[d9]===1){cV.bezierVertex(this.vertices[d7+0][0],this.vertices[d7+0][1],this.vertices[d7+1][0],this.vertices[d7+1][1],this.vertices[d7+2][0],this.vertices[d7+2][1]);d7+=3}else{if(this.vertexCodes[d9]===2){cV.curveVertex(this.vertices[d7][0],this.vertices[d7][1]);d7++}else{if(this.vertexCodes[d9]===3){cV.breakShape=true}}}}}}else{for(d9=0,d8=this.vertexCodes.length;d9<d8;d9++){if(this.vertexCodes[d9]===0){cV.vertex(this.vertices[d7][0],this.vertices[d7][1],this.vertices[d7][2]);if(this.vertices[d7]["moveTo"]===true){a7[a7.length-1]["moveTo"]=true}else{if(this.vertices[d7]["moveTo"]===false){a7[a7.length-1]["moveTo"]=false}}cV.breakShape=false}else{if(this.vertexCodes[d9]===1){cV.bezierVertex(this.vertices[d7+0][0],this.vertices[d7+0][1],this.vertices[d7+0][2],this.vertices[d7+1][0],this.vertices[d7+1][1],this.vertices[d7+1][2],this.vertices[d7+2][0],this.vertices[d7+2][1],this.vertices[d7+2][2]);d7+=3}else{if(this.vertexCodes[d9]===2){cV.curveVertex(this.vertices[d7][0],this.vertices[d7][1],this.vertices[d7][2]);d7++}else{if(this.vertexCodes[d9]===3){cV.breakShape=true}}}}}}}cV.endShape(this.close?2:1)},drawGeometry:function(){var d9,d8;cV.beginShape(this.kind);if(this.style){for(d9=0,d8=this.vertices.length;d9<d8;d9++){cV.vertex(this.vertices[d9])}}else{for(d9=0,d8=this.vertices.length;d9<d8;d9++){var d7=this.vertices[d9];if(d7[2]===0){cV.vertex(d7[0],d7[1])}else{cV.vertex(d7[0],d7[1],d7[2])}}}cV.endShape()},drawGroup:function(){for(var d8=0,d7=this.children.length;d8<d7;d8++){this.children[d8].draw()}},drawPrimitive:function(){if(this.kind===2){cV.point(this.params[0],this.params[1])}else{if(this.kind===4){if(this.params.length===4){cV.line(this.params[0],this.params[1],this.params[2],this.params[3])}else{cV.line(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5])}}else{if(this.kind===8){cV.triangle(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5])}else{if(this.kind===16){cV.quad(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5],this.params[6],this.params[7])}else{if(this.kind===30){if(this.image!==null){cV.imageMode(0);cV.image(this.image,this.params[0],this.params[1],this.params[2],this.params[3])}else{cV.rectMode(0);cV.rect(this.params[0],this.params[1],this.params[2],this.params[3])}}else{if(this.kind===31){cV.ellipseMode(0);cV.ellipse(this.params[0],this.params[1],this.params[2],this.params[3])}else{if(this.kind===32){cV.ellipseMode(0);cV.arc(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5])}else{if(this.kind===41){if(this.params.length===1){cV.box(this.params[0])}else{cV.box(this.params[0],this.params[1],this.params[2])}}else{if(this.kind===40){cV.sphere(this.params[0])}}}}}}}}}},pre:function(){if(this.matrix){cV.pushMatrix();d4.transform(this.matrix.elements[0],this.matrix.elements[3],this.matrix.elements[1],this.matrix.elements[4],this.matrix.elements[2],this.matrix.elements[5])}if(this.style){cV.pushStyle();this.styles()}},post:function(){if(this.matrix){cV.popMatrix()}if(this.style){cV.popStyle()}},styles:function(){if(this.stroke){cV.stroke(this.strokeColor);cV.strokeWeight(this.strokeWeight);cV.strokeCap(this.strokeCap);cV.strokeJoin(this.strokeJoin)}else{cV.noStroke()}if(this.fill){cV.fill(this.fillColor)}else{cV.noFill()}},getChild:function(ea){var d8,d7;if(typeof ea==="number"){return this.children[ea]}var d9;if(ea===""||this.name===ea){return this}if(this.nameTable.length>0){for(d8=0,d7=this.nameTable.length;d8<d7||d9;d8++){if(this.nameTable[d8].getName===ea){d9=this.nameTable[d8];break}}if(d9){return d9}}for(d8=0,d7=this.children.length;d8<d7;d8++){d9=this.children[d8].getChild(ea);if(d9){return d9}}return null},getChildCount:function(){return this.children.length},addChild:function(d7){this.children.push(d7);d7.parent=this;if(d7.getName()!==null){this.addName(d7.getName(),d7)}},addName:function(d8,d7){if(this.parent!==null){this.parent.addName(d8,d7)}else{this.nameTable.push([d8,d7])}},translate:function(){if(arguments.length===2){this.checkMatrix(2);this.matrix.translate(arguments[0],arguments[1])}else{this.checkMatrix(3);this.matrix.translate(arguments[0],arguments[1],0)}},checkMatrix:function(d7){if(this.matrix===null){if(d7===2){this.matrix=new cV.PMatrix2D}else{this.matrix=new cV.PMatrix3D}}else{if(d7===3&&this.matrix instanceof cV.PMatrix2D){this.matrix=new cV.PMatrix3D}}},rotateX:function(d7){this.rotate(d7,1,0,0)},rotateY:function(d7){this.rotate(d7,0,1,0)},rotateZ:function(d7){this.rotate(d7,0,0,1)},rotate:function(){if(arguments.length===1){this.checkMatrix(2);this.matrix.rotate(arguments[0])}else{this.checkMatrix(3);this.matrix.rotate(arguments[0],arguments[1],arguments[2],arguments[3])}},scale:function(){if(arguments.length===2){this.checkMatrix(2);this.matrix.scale(arguments[0],arguments[1])}else{if(arguments.length===3){this.checkMatrix(2);this.matrix.scale(arguments[0],arguments[1],arguments[2])}else{this.checkMatrix(2);this.matrix.scale(arguments[0])}}},resetMatrix:function(){this.checkMatrix(2);this.matrix.reset()},applyMatrix:function(d7){if(arguments.length===1){this.applyMatrix(d7.elements[0],d7.elements[1],0,d7.elements[2],d7.elements[3],d7.elements[4],0,d7.elements[5],0,0,1,0,0,0,0,1)}else{if(arguments.length===6){this.checkMatrix(2);this.matrix.apply(arguments[0],arguments[1],arguments[2],0,arguments[3],arguments[4],arguments[5],0,0,0,1,0,0,0,0,1)}else{if(arguments.length===16){this.checkMatrix(3);this.matrix.apply(arguments[0],arguments[1],arguments[2],arguments[3],arguments[4],arguments[5],arguments[6],arguments[7],arguments[8],arguments[9],arguments[10],arguments[11],arguments[12],arguments[13],arguments[14],arguments[15])}}}}};var cq=cV.PShapeSVG=function(){cV.PShape.call(this);if(arguments.length===1){this.element=arguments[0];this.vertexCodes=[];this.vertices=[];this.opacity=1;this.stroke=false;this.strokeColor=4278190080;this.strokeWeight=1;this.strokeCap="butt";this.strokeJoin="miter";this.strokeGradient=null;this.strokeGradientPaint=null;this.strokeName=null;this.strokeOpacity=1;this.fill=true;this.fillColor=4278190080;this.fillGradient=null;this.fillGradientPaint=null;this.fillName=null;this.fillOpacity=1;if(this.element.getName()!=="svg"){throw"root is not <svg>, it's <"+this.element.getName()+">"}}else{if(arguments.length===2){if(typeof arguments[1]==="string"){if(arguments[1].indexOf(".svg")>-1){this.element=new cV.XMLElement(null,arguments[1]);this.vertexCodes=[];this.vertices=[];this.opacity=1;this.stroke=false;this.strokeColor=4278190080;this.strokeWeight=1;this.strokeCap="butt";this.strokeJoin="miter";this.strokeGradient="";this.strokeGradientPaint="";this.strokeName="";this.strokeOpacity=1;this.fill=true;this.fillColor=4278190080;this.fillGradient=null;this.fillGradientPaint=null;this.fillOpacity=1}}else{if(arguments[0]){this.element=arguments[1];this.vertexCodes=arguments[0].vertexCodes.slice();this.vertices=arguments[0].vertices.slice();this.stroke=arguments[0].stroke;this.strokeColor=arguments[0].strokeColor;this.strokeWeight=arguments[0].strokeWeight;this.strokeCap=arguments[0].strokeCap;this.strokeJoin=arguments[0].strokeJoin;this.strokeGradient=arguments[0].strokeGradient;this.strokeGradientPaint=arguments[0].strokeGradientPaint;this.strokeName=arguments[0].strokeName;this.fill=arguments[0].fill;this.fillColor=arguments[0].fillColor;this.fillGradient=arguments[0].fillGradient;this.fillGradientPaint=arguments[0].fillGradientPaint;this.fillName=arguments[0].fillName;this.strokeOpacity=arguments[0].strokeOpacity;this.fillOpacity=arguments[0].fillOpacity;this.opacity=arguments[0].opacity}}}}this.name=this.element.getStringAttribute("id");var d7=this.element.getStringAttribute("display","inline");this.visible=d7!=="none";var ec=this.element.getAttribute("transform");if(ec){this.matrix=this.parseMatrix(ec)}var d9=this.element.getStringAttribute("viewBox");if(d9!==null){var eb=d9.split(" ");this.width=eb[2];this.height=eb[3]}var d8=this.element.getStringAttribute("width");var ea=this.element.getStringAttribute("height");if(d8!==null){this.width=this.parseUnitSize(d8);this.height=this.parseUnitSize(ea)}else{if(this.width===0||this.height===0){this.width=1;this.height=1;throw"The width and/or height is not readable in the <svg> tag of this file."}}this.parseColors(this.element);this.parseChildren(this.element)};cq.prototype=new M;cq.prototype.parseMatrix=function(){function d7(d9){var d8=[];d9.replace(/\((.*?)\)/,function(){return function(ea,eb){d8=eb.replace(/,+/g," ").split(/\s+/)}}());return d8}return function(ef){this.checkMatrix(2);var d8=[];ef.replace(/\s*(\w+)\((.*?)\)/g,function(ei){d8.push(cV.trim(ei))});if(d8.length===0){return null}for(var ed=0,eb=d8.length;ed<eb;ed++){var d9=d7(d8[ed]);if(d8[ed].indexOf("matrix")!==-1){this.matrix.set(d9[0],d9[2],d9[4],d9[1],d9[3],d9[5])}else{if(d8[ed].indexOf("translate")!==-1){var ee=d9[0];var ec=d9.length===2?d9[1]:0;this.matrix.translate(ee,ec)}else{if(d8[ed].indexOf("scale")!==-1){var eh=d9[0];var eg=d9.length===2?d9[1]:d9[0];this.matrix.scale(eh,eg)}else{if(d8[ed].indexOf("rotate")!==-1){var ea=d9[0];if(d9.length===1){this.matrix.rotate(cV.radians(ea))}else{if(d9.length===3){this.matrix.translate(d9[1],d9[2]);this.matrix.rotate(cV.radians(d9[0]));this.matrix.translate(-d9[1],-d9[2])}}}else{if(d8[ed].indexOf("skewX")!==-1){this.matrix.skewX(parseFloat(d9[0]))}else{if(d8[ed].indexOf("skewY")!==-1){this.matrix.skewY(d9[0])}}}}}}}return this.matrix}}();cq.prototype.parseChildren=function(ec){var d8=ec.getChildren();var eb=new cV.PShape;for(var ea=0,d9=d8.length;ea<d9;ea++){var d7=this.parseChild(d8[ea]);if(d7){eb.addChild(d7)}}this.children.push(eb)};cq.prototype.getName=function(){return this.name};cq.prototype.parseChild=function(d9){var d8=d9.getName();var d7;if(d8==="g"){d7=new cq(this,d9)}else{if(d8==="defs"){d7=new cq(this,d9)}else{if(d8==="line"){d7=new cq(this,d9);d7.parseLine()}else{if(d8==="circle"){d7=new cq(this,d9);d7.parseEllipse(true)}else{if(d8==="ellipse"){d7=new cq(this,d9);d7.parseEllipse(false)}else{if(d8==="rect"){d7=new cq(this,d9);d7.parseRect()}else{if(d8==="polygon"){d7=new cq(this,d9);d7.parsePoly(true)}else{if(d8==="polyline"){d7=new cq(this,d9);d7.parsePoly(false)}else{if(d8==="path"){d7=new cq(this,d9);d7.parsePath()}else{if(d8==="radialGradient"){dt("PShapeSVG.prototype.parseChild, name = radialGradient")}else{if(d8==="linearGradient"){dt("PShapeSVG.prototype.parseChild, name = linearGradient")}else{if(d8==="text"){dt("PShapeSVG.prototype.parseChild, name = text")}else{if(d8==="filter"){dt("PShapeSVG.prototype.parseChild, name = filter")}else{if(d8==="mask"){dt("PShapeSVG.prototype.parseChild, name = mask")}else{E()}}}}}}}}}}}}}}return d7};cq.prototype.parsePath=function(){this.family=21;this.kind=0;var ec=[];var ew;var ev=cV.trim(this.element.getStringAttribute("d").replace(/[\s,]+/g," "));if(ev===null){return}ev=cV.__toCharArray(ev);var ea=0,d9=0,eh=0,ef=0,eg=0,ee=0,en=0,em=0,d8=0,d7=0,ej=0,ei=0,el=0,ek=0,eu=0,eq=0;var eo="";var es=[];var et=false;var ed;var eb;var er,ep;while(eu<ev.length){eq=ev[eu].valueOf();if(eq>=65&&eq<=90||eq>=97&&eq<=122){er=eu;eu++;if(eu<ev.length){es=[];eq=ev[eu].valueOf();while(!(eq>=65&&eq<=90||eq>=97&&eq<=100||eq>=102&&eq<=122)&&et===false){if(eq===32){if(eo!==""){es.push(parseFloat(eo));eo=""}eu++}else{if(eq===45){if(ev[eu-1].valueOf()===101){eo+=ev[eu].toString();eu++}else{if(eo!==""){es.push(parseFloat(eo))}eo=ev[eu].toString();eu++}}else{eo+=ev[eu].toString();eu++}}if(eu===ev.length){et=true}else{eq=ev[eu].valueOf()}}}if(eo!==""){es.push(parseFloat(eo));eo=""}eb=ev[er];eq=eb.valueOf();if(eq===77){if(es.length>=2&&es.length%2===0){ea=es[0];d9=es[1];this.parsePathMoveto(ea,d9);if(es.length>2){for(er=2,ep=es.length;er<ep;er+=2){ea=es[er];d9=es[er+1];this.parsePathLineto(ea,d9)}}}}else{if(eq===109){if(es.length>=2&&es.length%2===0){ea+=es[0];d9+=es[1];this.parsePathMoveto(ea,d9);if(es.length>2){for(er=2,ep=es.length;er<ep;er+=2){ea+=es[er];d9+=es[er+1];this.parsePathLineto(ea,d9)}}}}else{if(eq===76){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){ea=es[er];d9=es[er+1];this.parsePathLineto(ea,d9)}}}else{if(eq===108){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){ea+=es[er];d9+=es[er+1];this.parsePathLineto(ea,d9)}}}else{if(eq===72){for(er=0,ep=es.length;er<ep;er++){ea=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===104){for(er=0,ep=es.length;er<ep;er++){ea+=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===86){for(er=0,ep=es.length;er<ep;er++){d9=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===118){for(er=0,ep=es.length;er<ep;er++){d9+=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===67){if(es.length>=6&&es.length%6===0){for(er=0,ep=es.length;er<ep;er+=6){eg=es[er];en=es[er+1];ee=es[er+2];em=es[er+3];d8=es[er+4];d7=es[er+5];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===99){if(es.length>=6&&es.length%6===0){for(er=0,ep=es.length;er<ep;er+=6){eg=ea+es[er];en=d9+es[er+1];ee=ea+es[er+2];em=d9+es[er+3];d8=ea+es[er+4];d7=d9+es[er+5];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===83){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){if(ed.toLowerCase()==="c"||ed.toLowerCase()==="s"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eg=el+(el-ej);en=ek+(ek-ei)}else{eg=this.vertices[this.vertices.length-1][0];en=this.vertices[this.vertices.length-1][1]}ee=es[er];em=es[er+1];d8=es[er+2];d7=es[er+3];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===115){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){if(ed.toLowerCase()==="c"||ed.toLowerCase()==="s"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eg=el+(el-ej);en=ek+(ek-ei)}else{eg=this.vertices[this.vertices.length-1][0];en=this.vertices[this.vertices.length-1][1]}ee=ea+es[er];em=d9+es[er+1];d8=ea+es[er+2];d7=d9+es[er+3];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===81){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){eh=es[er];ef=es[er+1];d8=es[er+2];d7=es[er+3];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===113){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){eh=ea+es[er];ef=d9+es[er+1];d8=ea+es[er+2];d7=d9+es[er+3];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===84){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){if(ed.toLowerCase()==="q"||ed.toLowerCase()==="t"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eh=el+(el-ej);ef=ek+(ek-ei)}else{eh=ea;ef=d9}d8=es[er];d7=es[er+1];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===116){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){if(ed.toLowerCase()==="q"||ed.toLowerCase()==="t"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eh=el+(el-ej);ef=ek+(ek-ei)}else{eh=ea;ef=d9}d8=ea+es[er];d7=d9+es[er+1];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===90||eq===122){this.close=true}}}}}}}}}}}}}}}}}ed=eb.toString()}else{eu++}}};cq.prototype.parsePathQuadto=function(d9,eb,d7,ec,d8,ea){if(this.vertices.length>0){this.parsePathCode(1);this.parsePathVertex(d9+(d7-d9)*2/3,eb+(ec-eb)*2/3);this.parsePathVertex(d8+(d7-d8)*2/3,ea+(ec-ea)*2/3);this.parsePathVertex(d8,ea)}else{throw"Path must start with M/m"}};cq.prototype.parsePathCurveto=function(ea,ec,d8,eb,d7,d9){if(this.vertices.length>0){this.parsePathCode(1);this.parsePathVertex(ea,ec);this.parsePathVertex(d8,eb);this.parsePathVertex(d7,d9)}else{throw"Path must start with M/m"}};cq.prototype.parsePathLineto=function(d8,d7){if(this.vertices.length>0){this.parsePathCode(0);this.parsePathVertex(d8,d7);this.vertices[this.vertices.length-1]["moveTo"]=false}else{throw"Path must start with M/m"}};cq.prototype.parsePathMoveto=function(d8,d7){if(this.vertices.length>0){this.parsePathCode(3)}this.parsePathCode(0);this.parsePathVertex(d8,d7);this.vertices[this.vertices.length-1]["moveTo"]=true};cq.prototype.parsePathVertex=function(d7,d9){var d8=[];d8[0]=d7;d8[1]=d9;this.vertices.push(d8)};cq.prototype.parsePathCode=function(d7){this.vertexCodes.push(d7)};cq.prototype.parsePoly=function(eb){this.family=21;this.close=eb;var d8=cV.trim(this.element.getStringAttribute("points").replace(/[,\s]+/g," "));if(d8!==null){var d7=d8.split(" ");if(d7.length%2===0){for(var ea=0,d9=d7.length;ea<d9;ea++){var ec=[];ec[0]=d7[ea];ec[1]=d7[++ea];this.vertices.push(ec)}}else{throw"Error parsing polygon points: odd number of coordinates provided"}}};cq.prototype.parseRect=function(){this.kind=30;this.family=1;this.params=[];this.params[0]=this.element.getFloatAttribute("x");this.params[1]=this.element.getFloatAttribute("y");this.params[2]=this.element.getFloatAttribute("width");this.params[3]=this.element.getFloatAttribute("height");if(this.params[2]<0||this.params[3]<0){throw"svg error: negative width or height found while parsing <rect>"}};cq.prototype.parseEllipse=function(d9){this.kind=31;this.family=1;this.params=[];this.params[0]=this.element.getFloatAttribute("cx")|0;this.params[1]=this.element.getFloatAttribute("cy")|0;var d8,d7;if(d9){d8=d7=this.element.getFloatAttribute("r");if(d8<0){throw"svg error: negative radius found while parsing <circle>"}}else{d8=this.element.getFloatAttribute("rx");d7=this.element.getFloatAttribute("ry");if(d8<0||d7<0){throw"svg error: negative x-axis radius or y-axis radius found while parsing <ellipse>"}}this.params[0]-=d8;this.params[1]-=d7;this.params[2]=d8*2;this.params[3]=d7*2};cq.prototype.parseLine=function(){this.kind=4;this.family=1;this.params=[];this.params[0]=this.element.getFloatAttribute("x1");this.params[1]=this.element.getFloatAttribute("y1");this.params[2]=this.element.getFloatAttribute("x2");this.params[3]=this.element.getFloatAttribute("y2")};cq.prototype.parseColors=function(d9){if(d9.hasAttribute("opacity")){this.setOpacity(d9.getAttribute("opacity"))}if(d9.hasAttribute("stroke")){this.setStroke(d9.getAttribute("stroke"))}if(d9.hasAttribute("stroke-width")){this.setStrokeWeight(d9.getAttribute("stroke-width"))}if(d9.hasAttribute("stroke-linejoin")){this.setStrokeJoin(d9.getAttribute("stroke-linejoin"))}if(d9.hasAttribute("stroke-linecap")){this.setStrokeCap(d9.getStringAttribute("stroke-linecap"))}if(d9.hasAttribute("fill")){this.setFill(d9.getStringAttribute("fill"))}if(d9.hasAttribute("style")){var ec=d9.getStringAttribute("style");var ea=ec.toString().split(";");for(var d8=0,d7=ea.length;d8<d7;d8++){var eb=cV.trim(ea[d8].split(":"));if(eb[0]==="fill"){this.setFill(eb[1])}else{if(eb[0]==="fill-opacity"){this.setFillOpacity(eb[1])}else{if(eb[0]==="stroke"){this.setStroke(eb[1])}else{if(eb[0]==="stroke-width"){this.setStrokeWeight(eb[1])}else{if(eb[0]==="stroke-linecap"){this.setStrokeCap(eb[1])}else{if(eb[0]==="stroke-linejoin"){this.setStrokeJoin(eb[1])}else{if(eb[0]==="stroke-opacity"){this.setStrokeOpacity(eb[1])}else{if(eb[0]==="opacity"){this.setOpacity(eb[1])}}}}}}}}}}};cq.prototype.setFillOpacity=function(d7){this.fillOpacity=parseFloat(d7);this.fillColor=this.fillOpacity*255<<24|this.fillColor&16777215};cq.prototype.setFill=function(d7){var d8=this.fillColor&4278190080;if(d7==="none"){this.fill=false}else{if(d7.indexOf("#")===0){this.fill=true;if(d7.length===4){d7=d7.replace(/#(.)(.)(.)/,"#$1$1$2$2$3$3")}this.fillColor=d8|parseInt(d7.substring(1),16)&16777215}else{if(d7.indexOf("rgb")===0){this.fill=true;this.fillColor=d8|this.parseRGB(d7)}else{if(d7.indexOf("url(#")===0){this.fillName=d7.substring(5,d7.length-1)}else{if(C[d7]){this.fill=true;this.fillColor=d8|parseInt(C[d7].substring(1),16)&16777215}}}}}};cq.prototype.setOpacity=function(d7){this.strokeColor=parseFloat(d7)*255<<24|this.strokeColor&16777215;this.fillColor=parseFloat(d7)*255<<24|this.fillColor&16777215};cq.prototype.setStroke=function(d7){var d8=this.strokeColor&4278190080;if(d7==="none"){this.stroke=false}else{if(d7.charAt(0)==="#"){this.stroke=true;if(d7.length===4){d7=d7.replace(/#(.)(.)(.)/,"#$1$1$2$2$3$3")}this.strokeColor=d8|parseInt(d7.substring(1),16)&16777215}else{if(d7.indexOf("rgb")===0){this.stroke=true;this.strokeColor=d8|this.parseRGB(d7)}else{if(d7.indexOf("url(#")===0){this.strokeName=d7.substring(5,d7.length-1)}else{if(C[d7]){this.stroke=true;this.strokeColor=d8|parseInt(C[d7].substring(1),16)&16777215}}}}}};cq.prototype.setStrokeWeight=function(d7){this.strokeWeight=this.parseUnitSize(d7)};cq.prototype.setStrokeJoin=function(d7){if(d7==="miter"){this.strokeJoin="miter"}else{if(d7==="round"){this.strokeJoin="round"}else{if(d7==="bevel"){this.strokeJoin="bevel"}}}};cq.prototype.setStrokeCap=function(d7){if(d7==="butt"){this.strokeCap="butt"}else{if(d7==="round"){this.strokeCap="round"}else{if(d7==="square"){this.strokeCap="square"}}}};cq.prototype.setStrokeOpacity=function(d7){this.strokeOpacity=parseFloat(d7);this.strokeColor=this.strokeOpacity*255<<24|this.strokeColor&16777215};cq.prototype.parseRGB=function(d8){var d9=d8.substring(d8.indexOf("(")+1,d8.indexOf(")"));var d7=d9.split(", ");return d7[0]<<16|d7[1]<<8|d7[2]};cq.prototype.parseUnitSize=function(d8){var d7=d8.length-2;if(d7<0){return d8}if(d8.indexOf("pt")===d7){return parseFloat(d8.substring(0,d7))*1.25}if(d8.indexOf("pc")===d7){return parseFloat(d8.substring(0,d7))*15}if(d8.indexOf("mm")===d7){return parseFloat(d8.substring(0,d7))*3.543307}if(d8.indexOf("cm")===d7){return parseFloat(d8.substring(0,d7))*35.43307}if(d8.indexOf("in")===d7){return parseFloat(d8.substring(0,d7))*90}if(d8.indexOf("px")===d7){return parseFloat(d8.substring(0,d7))}return parseFloat(d8)};cV.shape=function(d9,d8,eb,ea,d7){if(arguments.length>=1&&arguments[0]!==null){if(d9.isVisible()){cV.pushMatrix();if(Q===3){if(arguments.length===5){cV.translate(d8-ea/2,eb-d7/2);cV.scale(ea/d9.getWidth(),d7/d9.getHeight())}else{if(arguments.length===3){cV.translate(d8-d9.getWidth()/2,-d9.getHeight()/2)}else{cV.translate(-d9.getWidth()/2,-d9.getHeight()/2)}}}else{if(Q===0){if(arguments.length===5){cV.translate(d8,eb);cV.scale(ea/d9.getWidth(),d7/d9.getHeight())}else{if(arguments.length===3){cV.translate(d8,eb)}}}else{if(Q===1){if(arguments.length===5){ea-=d8;d7-=eb;cV.translate(d8,eb);cV.scale(ea/d9.getWidth(),d7/d9.getHeight())}else{if(arguments.length===3){cV.translate(d8,eb)}}}}}d9.draw();if(arguments.length===1&&Q===3||arguments.length>1){cV.popMatrix()}}}};cV.shapeMode=function(d7){Q=d7};cV.loadShape=function(d7){if(arguments.length===1){if(d7.indexOf(".svg")>-1){return new cq(null,d7)}}return null};var cS=function(eb,ea,d7,d8,d9){this.fullName=eb||"";this.name=ea||"";this.namespace=d7||"";this.value=d8;this.type=d9};cS.prototype={getName:function(){return this.name},getFullName:function(){return this.fullName},getNamespace:function(){return this.namespace},getValue:function(){return this.value},getType:function(){return this.type},setValue:function(d7){this.value=d7}};var b8=cV.XMLElement=function(){this.attributes=[];this.children=[];this.fullName=null;this.name=null;this.namespace="";this.content=null;this.parent=null;this.lineNr="";this.systemID="";this.type="ELEMENT";if(arguments.length===4){this.fullName=arguments[0]||"";if(arguments[1]){this.name=arguments[1]}else{var d7=this.fullName.indexOf(":");if(d7>=0){this.name=this.fullName.substring(d7+1)}else{this.name=this.fullName}}this.namespace=arguments[1];this.lineNr=arguments[3];this.systemID=arguments[2]}else{if(arguments.length===2&&arguments[1].indexOf(".")>-1){this.parse(arguments[arguments.length-1])}else{if(arguments.length===1&&typeof arguments[0]==="string"){this.parse(arguments[0])}}}};b8.prototype={parse:function(d7){var d9;try{var eb=d7.substring(d7.length-4);if(eb===".xml"||eb===".svg"){d7=u(d7)}d9=(new DOMParser).parseFromString(d7,"text/xml");var d8=d9.documentElement;if(d8){this.parseChildrenRecursive(null,d8)}else{throw"Error loading document"}return this}catch(ea){throw ea}},parseChildrenRecursive:function(ef,ed){var ec,d8,ee,eb,ea,d7;if(!ef){this.fullName=ed.localName;this.name=ed.nodeName;ec=this}else{ec=new b8(ed.localName,ed.nodeName,"","");ec.parent=ef}if(ed.nodeType===3&&ed.textContent!==""){return this.createPCDataElement(ed.textContent)}for(eb=0,ea=ed.attributes.length;eb<ea;eb++){ee=ed.attributes[eb];d8=new cS(ee.getname,ee.nodeName,ee.namespaceURI,ee.nodeValue,ee.nodeType);ec.attributes.push(d8)}for(eb=0,ea=ed.childNodes.length;eb<ea;eb++){var d9=ed.childNodes[eb];if(d9.nodeType===1||d9.nodeType===3){d7=ec.parseChildrenRecursive(ec,d9);if(d7!==null){ec.children.push(d7)}}}return ec},createElement:function(){if(arguments.length===2){return new b8(arguments[0],arguments[1],null,null)}return new b8(arguments[0],arguments[1],arguments[2],arguments[3])},createPCDataElement:function(d7){if(d7.replace(/^\s+$/g,"")===""){return null}var d8=new b8;d8.content=d7;d8.type="TEXT";return d8},hasAttribute:function(){if(arguments.length===1){return this.getAttribute(arguments[0])!==null}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])!==null}},equals:function(ec){if(!(ec instanceof b8)){return false}var d9,d8;if(this.name!==ec.getLocalName()){return false}if(this.attributes.length!==ec.getAttributeCount()){return false}if(this.attributes.length!==ec.attributes.length){return false}var eg,ee,d7,ed,ef;for(d9=0,d8=this.attributes.length;d9<d8;d9++){eg=this.attributes[d9].getName();ee=this.attributes[d9].getNamespace();ef=ec.findAttribute(eg,ee);if(ef===null){return false}if(this.attributes[d9].getValue()!==ef.getValue()){return false}if(this.attributes[d9].getType()!==ef.getType()){return false}}if(this.children.length!==ec.getChildCount()){return false}if(this.children.length>0){var eb,ea;for(d9=0,d8=this.children.length;d9<d8;d9++){eb=this.getChild(d9);ea=ec.getChild(d9);if(!eb.equals(ea)){return false}}return true}return this.content===ec.content},getContent:function(){if(this.type==="TEXT"){return this.content}var d7=this.children;if(d7.length===1&&d7[0].type==="TEXT"){return d7[0].content}return null},getAttribute:function(){var d7;if(arguments.length===2){d7=this.findAttribute(arguments[0]);if(d7){return d7.getValue()}return arguments[1]}else{if(arguments.length===1){d7=this.findAttribute(arguments[0]);if(d7){return d7.getValue()}return null}else{if(arguments.length===3){d7=this.findAttribute(arguments[0],arguments[1]);if(d7){return d7.getValue()}return arguments[2]}}}},getStringAttribute:function(){if(arguments.length===1){return this.getAttribute(arguments[0])}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])}return this.getAttribute(arguments[0],arguments[1],arguments[2])},getString:function(d7){return this.getStringAttribute(d7)},getFloatAttribute:function(){if(arguments.length===1){return parseFloat(this.getAttribute(arguments[0],0))}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])}return this.getAttribute(arguments[0],arguments[1],arguments[2])},getFloat:function(d7){return this.getFloatAttribute(d7)},getIntAttribute:function(){if(arguments.length===1){return this.getAttribute(arguments[0],0)}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])}return this.getAttribute(arguments[0],arguments[1],arguments[2])},getInt:function(d7){return this.getIntAttribute(d7)},hasChildren:function(){return this.children.length>0},addChild:function(d7){if(d7!==null){d7.parent=this;this.children.push(d7)}},insertChild:function(d9,d7){if(d9){if(d9.getLocalName()===null&&!this.hasChildren()){var d8=this.children[this.children.length-1];if(d8.getLocalName()===null){d8.setContent(d8.getContent()+d9.getContent());return}}d9.parent=this;this.children.splice(d7,0,d9)}},getChild:function(){if(typeof arguments[0]==="number"){return this.children[arguments[0]]}if(arguments[0].indexOf("/")!==-1){this.getChildRecursive(arguments[0].split("/"),0);return null}var d7,ea;for(var d9=0,d8=this.getChildCount();d9<d8;d9++){d7=this.getChild(d9);ea=d7.getName();if(ea!==null&&ea===arguments[0]){return d7}}return null},getChildren:function(){if(arguments.length===1){if(typeof arguments[0]==="number"){return this.getChild(arguments[0])}if(arguments[0].indexOf("/")!==-1){return this.getChildrenRecursive(arguments[0].split("/"),0)}var eb=[];var d7,ea;for(var d9=0,d8=this.getChildCount();d9<d8;d9++){d7=this.getChild(d9);ea=d7.getName();if(ea!==null&&ea===arguments[0]){eb.push(d7)}}return eb}return this.children},getChildCount:function(){return this.children.length},getChildRecursive:function(d8,ec){var d7,eb;for(var ea=0,d9=this.getChildCount();ea<d9;ea++){d7=this.getChild(ea);eb=d7.getName();if(eb!==null&&eb===d8[ec]){if(ec===d8.length-1){return d7}ec+=1;return d7.getChildRecursive(d8,ec)}}return null},getChildrenRecursive:function(d7,eb){if(eb===d7.length-1){return this.getChildren(d7[eb])}var ea=this.getChildren(d7[eb]);var d9=[];for(var d8=0;d8<ea.length;d8++){d9=d9.concat(ea[d8].getChildrenRecursive(d7,eb+1))}return d9},isLeaf:function(){return !this.hasChildren()},listChildren:function(){var d7=[];for(var d9=0,d8=this.children.length;d9<d8;d9++){d7.push(this.getChild(d9).getName())}return d7},removeAttribute:function(d8,ea){this.namespace=ea||"";for(var d9=0,d7=this.attributes.length;d9<d7;d9++){if(this.attributes[d9].getName()===d8&&this.attributes[d9].getNamespace()===this.namespace){this.attributes.splice(d9,1);break}}},removeChild:function(d9){if(d9){for(var d8=0,d7=this.children.length;d8<d7;d8++){if(this.children[d8].equals(d9)){this.children.splice(d8,1);break}}}},removeChildAtIndex:function(d7){if(this.children.length>d7){this.children.splice(d7,1)}},findAttribute:function(d8,ea){this.namespace=ea||"";for(var d9=0,d7=this.attributes.length;d9<d7;d9++){if(this.attributes[d9].getName()===d8&&this.attributes[d9].getNamespace()===this.namespace){return this.attributes[d9]}}return null},setAttribute:function(){var d7;if(arguments.length===3){var d9=arguments[0].indexOf(":");var d8=arguments[0].substring(d9+1);d7=this.findAttribute(d8,arguments[1]);if(d7){d7.setValue(arguments[2])}else{d7=new cS(arguments[0],d8,arguments[1],arguments[2],"CDATA");this.attributes.push(d7)}}else{d7=this.findAttribute(arguments[0]);if(d7){d7.setValue(arguments[1])}else{d7=new cS(arguments[0],arguments[0],null,arguments[1],"CDATA");this.attributes.push(d7)}}},setString:function(d7,d8){this.setAttribute(d7,d8)},setInt:function(d7,d8){this.setAttribute(d7,d8)},setFloat:function(d7,d8){this.setAttribute(d7,d8)},setContent:function(d7){if(this.children.length>0){D.debug("Tried to set content for XMLElement with children")}this.content=d7},setName:function(){if(arguments.length===1){this.name=arguments[0];this.fullName=arguments[0];this.namespace=null}else{var d7=arguments[0].indexOf(":");if(arguments[1]===null||d7<0){this.name=arguments[0]}else{this.name=arguments[0].substring(d7+1)}this.fullName=arguments[0];this.namespace=arguments[1]}},getName:function(){return this.fullName},getLocalName:function(){return this.name},getAttributeCount:function(){return this.attributes.length},toString:function(){if(this.type==="TEXT"){return this.content}var d9=(this.namespace!==""&&this.namespace!==this.name?this.namespace+":":"")+this.name;var ea="<"+d9;var d8,eb;for(d8=0;d8<this.attributes.length;d8++){var d7=this.attributes[d8];ea+=" "+d7.getName()+'="'+d7.getValue()+'"'}if(this.children.length===0){if(this.content===""){ea+="/>"}else{ea+=">"+this.content+"</"+d9+">"}}else{ea+=">";for(eb=0;eb<this.children.length;eb++){ea+=this.children[eb].toString()}ea+="</"+d9+">"}return ea}};b8.parse=function(d8){var d7=new b8;d7.parse(d8);return d7};var cl=function(ea){var d7=0;for(var d8=0;d8<ea.length;d8++){if(d8!==0){d7=o.max(d7,o.abs(ea[d8]))}else{d7=o.abs(ea[d8])}}var d9=(d7+"").indexOf(".");if(d9===0){d9=1}else{if(d9===-1){d9=(d7+"").length}}return d9};var aT=cV.PMatrix2D=function(){if(arguments.length===0){this.reset()}else{if(arguments.length===1&&arguments[0] instanceof aT){this.set(arguments[0].array())}else{if(arguments.length===6){this.set(arguments[0],arguments[1],arguments[2],arguments[3],arguments[4],arguments[5])}}}};aT.prototype={set:function(){if(arguments.length===6){var d7=arguments;this.set([d7[0],d7[1],d7[2],d7[3],d7[4],d7[5]])}else{if(arguments.length===1&&arguments[0] instanceof aT){this.elements=arguments[0].array()}else{if(arguments.length===1&&arguments[0] instanceof Array){this.elements=arguments[0].slice()}}}},get:function(){var d7=new aT;d7.set(this.elements);return d7},reset:function(){this.set([1,0,0,0,1,0])},array:function aD(){return this.elements.slice()},translate:function(d8,d7){this.elements[2]=d8*this.elements[0]+d7*this.elements[1]+this.elements[2];this.elements[5]=d8*this.elements[3]+d7*this.elements[4]+this.elements[5]},invTranslate:function(d8,d7){this.translate(-d8,-d7)},transpose:function(){},mult:function(d8,d9){var d7,ea;if(d8 instanceof y){d7=d8.x;ea=d8.y;if(!d9){d9=new y}}else{if(d8 instanceof Array){d7=d8[0];ea=d8[1];if(!d9){d9=[]}}}if(d9 instanceof Array){d9[0]=this.elements[0]*d7+this.elements[1]*ea+this.elements[2];d9[1]=this.elements[3]*d7+this.elements[4]*ea+this.elements[5]}else{if(d9 instanceof y){d9.x=this.elements[0]*d7+this.elements[1]*ea+this.elements[2];d9.y=this.elements[3]*d7+this.elements[4]*ea+this.elements[5];d9.z=0}}return d9},multX:function(d7,d8){return d7*this.elements[0]+d8*this.elements[1]+this.elements[2]},multY:function(d7,d8){return d7*this.elements[3]+d8*this.elements[4]+this.elements[5]},skewX:function(d7){this.apply(1,0,1,d7,0,0)},skewY:function(d7){this.apply(1,0,1,0,d7,0)},determinant:function(){return this.elements[0]*this.elements[4]-this.elements[1]*this.elements[3]},invert:function(){var ec=this.determinant();if(o.abs(ec)>-2147483648){var d8=this.elements[0];var ed=this.elements[1];var eb=this.elements[2];var ea=this.elements[3];var d9=this.elements[4];var d7=this.elements[5];this.elements[0]=d9/ec;this.elements[3]=-ea/ec;this.elements[1]=-ed/ec;this.elements[4]=d8/ec;this.elements[2]=(ed*d7-d9*eb)/ec;this.elements[5]=(ea*eb-d8*d7)/ec;return true}return false},scale:function(d8,d7){if(d8&&!d7){d7=d8}if(d8&&d7){this.elements[0]*=d8;this.elements[1]*=d7;this.elements[3]*=d8;this.elements[4]*=d7}},invScale:function(d8,d7){if(d8&&!d7){d7=d8}this.scale(1/d8,1/d7)},apply:function(){var d9;if(arguments.length===1&&arguments[0] instanceof aT){d9=arguments[0].array()}else{if(arguments.length===6){d9=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d9=arguments[0]}}}var d7=[0,0,this.elements[2],0,0,this.elements[5]];var ea=0;for(var eb=0;eb<2;eb++){for(var d8=0;d8<3;d8++,ea++){d7[ea]+=this.elements[eb*3+0]*d9[d8+0]+this.elements[eb*3+1]*d9[d8+3]}}this.elements=d7.slice()},preApply:function(){var d8;if(arguments.length===1&&arguments[0] instanceof aT){d8=arguments[0].array()}else{if(arguments.length===6){d8=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d8=arguments[0]}}}var d7=[0,0,d8[2],0,0,d8[5]];d7[2]=d8[2]+this.elements[2]*d8[0]+this.elements[5]*d8[1];d7[5]=d8[5]+this.elements[2]*d8[3]+this.elements[5]*d8[4];d7[0]=this.elements[0]*d8[0]+this.elements[3]*d8[1];d7[3]=this.elements[0]*d8[3]+this.elements[3]*d8[4];d7[1]=this.elements[1]*d8[0]+this.elements[4]*d8[1];d7[4]=this.elements[1]*d8[3]+this.elements[4]*d8[4];this.elements=d7.slice()},rotate:function(d9){var eb=o.cos(d9);var d7=o.sin(d9);var ea=this.elements[0];var d8=this.elements[1];this.elements[0]=eb*ea+d7*d8;this.elements[1]=-d7*ea+eb*d8;ea=this.elements[3];d8=this.elements[4];this.elements[3]=eb*ea+d7*d8;this.elements[4]=-d7*ea+eb*d8},rotateZ:function(d7){this.rotate(d7)},invRotateZ:function(d7){this.rotateZ(d7-o.PI)},print:function(){var d8=cl(this.elements);var d7=""+cV.nfs(this.elements[0],d8,4)+" "+cV.nfs(this.elements[1],d8,4)+" "+cV.nfs(this.elements[2],d8,4)+"\n"+cV.nfs(this.elements[3],d8,4)+" "+cV.nfs(this.elements[4],d8,4)+" "+cV.nfs(this.elements[5],d8,4)+"\n\n";cV.println(d7)}};var aM=cV.PMatrix3D=function(){this.reset()};aM.prototype={set:function(){if(arguments.length===16){this.elements=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof aM){this.elements=arguments[0].array()}else{if(arguments.length===1&&arguments[0] instanceof Array){this.elements=arguments[0].slice()}}}},get:function(){var d7=new aM;d7.set(this.elements);return d7},reset:function(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]},array:function aD(){return this.elements.slice()},translate:function(d8,d7,d9){if(d9===r){d9=0}this.elements[3]+=d8*this.elements[0]+d7*this.elements[1]+d9*this.elements[2];this.elements[7]+=d8*this.elements[4]+d7*this.elements[5]+d9*this.elements[6];this.elements[11]+=d8*this.elements[8]+d7*this.elements[9]+d9*this.elements[10];this.elements[15]+=d8*this.elements[12]+d7*this.elements[13]+d9*this.elements[14]},transpose:function(){var d7=this.elements[4];this.elements[4]=this.elements[1];this.elements[1]=d7;d7=this.elements[8];this.elements[8]=this.elements[2];this.elements[2]=d7;d7=this.elements[6];this.elements[6]=this.elements[9];this.elements[9]=d7;d7=this.elements[3];this.elements[3]=this.elements[12];this.elements[12]=d7;d7=this.elements[7];this.elements[7]=this.elements[13];this.elements[13]=d7;d7=this.elements[11];this.elements[11]=this.elements[14];this.elements[14]=d7},mult:function(d9,ea){var d7,ec,eb,d8;if(d9 instanceof y){d7=d9.x;ec=d9.y;eb=d9.z;d8=1;if(!ea){ea=new y}}else{if(d9 instanceof Array){d7=d9[0];ec=d9[1];eb=d9[2];d8=d9[3]||1;if(!ea||ea.length!==3&&ea.length!==4){ea=[0,0,0]}}}if(ea instanceof Array){if(ea.length===3){ea[0]=this.elements[0]*d7+this.elements[1]*ec+this.elements[2]*eb+this.elements[3];ea[1]=this.elements[4]*d7+this.elements[5]*ec+this.elements[6]*eb+this.elements[7];ea[2]=this.elements[8]*d7+this.elements[9]*ec+this.elements[10]*eb+this.elements[11]}else{if(ea.length===4){ea[0]=this.elements[0]*d7+this.elements[1]*ec+this.elements[2]*eb+this.elements[3]*d8;ea[1]=this.elements[4]*d7+this.elements[5]*ec+this.elements[6]*eb+this.elements[7]*d8;ea[2]=this.elements[8]*d7+this.elements[9]*ec+this.elements[10]*eb+this.elements[11]*d8;ea[3]=this.elements[12]*d7+this.elements[13]*ec+this.elements[14]*eb+this.elements[15]*d8}}}if(ea instanceof y){ea.x=this.elements[0]*d7+this.elements[1]*ec+this.elements[2]*eb+this.elements[3];ea.y=this.elements[4]*d7+this.elements[5]*ec+this.elements[6]*eb+this.elements[7];ea.z=this.elements[8]*d7+this.elements[9]*ec+this.elements[10]*eb+this.elements[11]}return ea},preApply:function(){var d9;if(arguments.length===1&&arguments[0] instanceof aM){d9=arguments[0].array()}else{if(arguments.length===16){d9=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d9=arguments[0]}}}var d7=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];var ea=0;for(var eb=0;eb<4;eb++){for(var d8=0;d8<4;d8++,ea++){d7[ea]+=this.elements[d8+0]*d9[eb*4+0]+this.elements[d8+4]*d9[eb*4+1]+this.elements[d8+8]*d9[eb*4+2]+this.elements[d8+12]*d9[eb*4+3]}}this.elements=d7.slice()},apply:function(){var d9;if(arguments.length===1&&arguments[0] instanceof aM){d9=arguments[0].array()}else{if(arguments.length===16){d9=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d9=arguments[0]}}}var d7=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];var ea=0;for(var eb=0;eb<4;eb++){for(var d8=0;d8<4;d8++,ea++){d7[ea]+=this.elements[eb*4+0]*d9[d8+0]+this.elements[eb*4+1]*d9[d8+4]+this.elements[eb*4+2]*d9[d8+8]+this.elements[eb*4+3]*d9[d8+12]}}this.elements=d7.slice()},rotate:function(eb,d7,ed,ea){if(!ed){this.rotateZ(eb)}else{var ec=cV.cos(eb);var d9=cV.sin(eb);var d8=1-ec;this.apply(d8*d7*d7+ec,d8*d7*ed-d9*ea,d8*d7*ea+d9*ed,0,d8*d7*ed+d9*ea,d8*ed*ed+ec,d8*ed*ea-d9*d7,0,d8*d7*ea-d9*ed,d8*ed*ea+d9*d7,d8*ea*ea+ec,0,0,0,0,1)}},invApply:function(){if(Z===r){Z=new aM}var d7=arguments;Z.set(d7[0],d7[1],d7[2],d7[3],d7[4],d7[5],d7[6],d7[7],d7[8],d7[9],d7[10],d7[11],d7[12],d7[13],d7[14],d7[15]);if(!Z.invert()){return false}this.preApply(Z);return true},rotateX:function(d8){var d9=cV.cos(d8);var d7=cV.sin(d8);this.apply([1,0,0,0,0,d9,-d7,0,0,d7,d9,0,0,0,0,1])},rotateY:function(d8){var d9=cV.cos(d8);var d7=cV.sin(d8);this.apply([d9,0,d7,0,0,1,0,0,-d7,0,d9,0,0,0,0,1])},rotateZ:function(d8){var d9=o.cos(d8);var d7=o.sin(d8);this.apply([d9,-d7,0,0,d7,d9,0,0,0,0,1,0,0,0,0,1])},scale:function(d9,d8,d7){if(d9&&!d8&&!d7){d8=d7=d9}else{if(d9&&d8&&!d7){d7=1}}if(d9&&d8&&d7){this.elements[0]*=d9;this.elements[1]*=d8;this.elements[2]*=d7;this.elements[4]*=d9;this.elements[5]*=d8;this.elements[6]*=d7;this.elements[8]*=d9;this.elements[9]*=d8;this.elements[10]*=d7;this.elements[12]*=d9;this.elements[13]*=d8;this.elements[14]*=d7}},skewX:function(d8){var d7=o.tan(d8);this.apply(1,d7,0,0,0,1,0,0,0,0,1,0,0,0,0,1)},skewY:function(d8){var d7=o.tan(d8);this.apply(1,0,0,0,d7,1,0,0,0,0,1,0,0,0,0,1)},multX:function(d7,ea,d9,d8){if(!d9){return this.elements[0]*d7+this.elements[1]*ea+this.elements[3]}if(!d8){return this.elements[0]*d7+this.elements[1]*ea+this.elements[2]*d9+this.elements[3]}return this.elements[0]*d7+this.elements[1]*ea+this.elements[2]*d9+this.elements[3]*d8},multY:function(d7,ea,d9,d8){if(!d9){return this.elements[4]*d7+this.elements[5]*ea+this.elements[7]}if(!d8){return this.elements[4]*d7+this.elements[5]*ea+this.elements[6]*d9+this.elements[7]}return this.elements[4]*d7+this.elements[5]*ea+this.elements[6]*d9+this.elements[7]*d8},multZ:function(d7,ea,d9,d8){if(!d8){return this.elements[8]*d7+this.elements[9]*ea+this.elements[10]*d9+this.elements[11]}return this.elements[8]*d7+this.elements[9]*ea+this.elements[10]*d9+this.elements[11]*d8},multW:function(d7,ea,d9,d8){if(!d8){return this.elements[12]*d7+this.elements[13]*ea+this.elements[14]*d9+this.elements[15]}return this.elements[12]*d7+this.elements[13]*ea+this.elements[14]*d9+this.elements[15]*d8},invert:function(){var eg=this.elements[0]*this.elements[5]-this.elements[1]*this.elements[4];var ef=this.elements[0]*this.elements[6]-this.elements[2]*this.elements[4];var ee=this.elements[0]*this.elements[7]-this.elements[3]*this.elements[4];var ed=this.elements[1]*this.elements[6]-this.elements[2]*this.elements[5];var ec=this.elements[1]*this.elements[7]-this.elements[3]*this.elements[5];var eb=this.elements[2]*this.elements[7]-this.elements[3]*this.elements[6];var ea=this.elements[8]*this.elements[13]-this.elements[9]*this.elements[12];var d9=this.elements[8]*this.elements[14]-this.elements[10]*this.elements[12];var d8=this.elements[8]*this.elements[15]-this.elements[11]*this.elements[12];var el=this.elements[9]*this.elements[14]-this.elements[10]*this.elements[13];var ej=this.elements[9]*this.elements[15]-this.elements[11]*this.elements[13];var ei=this.elements[10]*this.elements[15]-this.elements[11]*this.elements[14];var ek=eg*ei-ef*ej+ee*el+ed*d8-ec*d9+eb*ea;if(o.abs(ek)<=1e-9){return false}var eh=[];eh[0]=+this.elements[5]*ei-this.elements[6]*ej+this.elements[7]*el;eh[4]=-this.elements[4]*ei+this.elements[6]*d8-this.elements[7]*d9;eh[8]=+this.elements[4]*ej-this.elements[5]*d8+this.elements[7]*ea;eh[12]=-this.elements[4]*el+this.elements[5]*d9-this.elements[6]*ea;eh[1]=-this.elements[1]*ei+this.elements[2]*ej-this.elements[3]*el;eh[5]=+this.elements[0]*ei-this.elements[2]*d8+this.elements[3]*d9;eh[9]=-this.elements[0]*ej+this.elements[1]*d8-this.elements[3]*ea;eh[13]=+this.elements[0]*el-this.elements[1]*d9+this.elements[2]*ea;eh[2]=+this.elements[13]*eb-this.elements[14]*ec+this.elements[15]*ed;eh[6]=-this.elements[12]*eb+this.elements[14]*ee-this.elements[15]*ef;eh[10]=+this.elements[12]*ec-this.elements[13]*ee+this.elements[15]*eg;eh[14]=-this.elements[12]*ed+this.elements[13]*ef-this.elements[14]*eg;eh[3]=-this.elements[9]*eb+this.elements[10]*ec-this.elements[11]*ed;eh[7]=+this.elements[8]*eb-this.elements[10]*ee+this.elements[11]*ef;eh[11]=-this.elements[8]*ec+this.elements[9]*ee-this.elements[11]*eg;eh[15]=+this.elements[8]*ed-this.elements[9]*ef+this.elements[10]*eg;var d7=1/ek;eh[0]*=d7;eh[1]*=d7;eh[2]*=d7;eh[3]*=d7;eh[4]*=d7;eh[5]*=d7;eh[6]*=d7;eh[7]*=d7;eh[8]*=d7;eh[9]*=d7;eh[10]*=d7;eh[11]*=d7;eh[12]*=d7;eh[13]*=d7;eh[14]*=d7;eh[15]*=d7;this.elements=eh.slice();return true},toString:function(){var d8="";for(var d7=0;d7<15;d7++){d8+=this.elements[d7]+", "}d8+=this.elements[15];return d8},print:function(){var d8=cl(this.elements);var d7=""+cV.nfs(this.elements[0],d8,4)+" "+cV.nfs(this.elements[1],d8,4)+" "+cV.nfs(this.elements[2],d8,4)+" "+cV.nfs(this.elements[3],d8,4)+"\n"+cV.nfs(this.elements[4],d8,4)+" "+cV.nfs(this.elements[5],d8,4)+" "+cV.nfs(this.elements[6],d8,4)+" "+cV.nfs(this.elements[7],d8,4)+"\n"+cV.nfs(this.elements[8],d8,4)+" "+cV.nfs(this.elements[9],d8,4)+" "+cV.nfs(this.elements[10],d8,4)+" "+cV.nfs(this.elements[11],d8,4)+"\n"+cV.nfs(this.elements[12],d8,4)+" "+cV.nfs(this.elements[13],d8,4)+" "+cV.nfs(this.elements[14],d8,4)+" "+cV.nfs(this.elements[15],d8,4)+"\n\n";cV.println(d7)},invTranslate:function(d8,d7,d9){this.preApply(1,0,0,-d8,0,1,0,-d7,0,0,1,-d9,0,0,0,1)},invRotateX:function(d8){var d9=o.cos(-d8);var d7=o.sin(-d8);this.preApply([1,0,0,0,0,d9,-d7,0,0,d7,d9,0,0,0,0,1])},invRotateY:function(d8){var d9=o.cos(-d8);var d7=o.sin(-d8);this.preApply([d9,0,d7,0,0,1,0,0,-d7,0,d9,0,0,0,0,1])},invRotateZ:function(d8){var d9=o.cos(-d8);var d7=o.sin(-d8);this.preApply([d9,-d7,0,0,d7,d9,0,0,0,0,1,0,0,0,0,1])},invScale:function(d7,d9,d8){this.preApply([1/d7,0,0,0,0,1/d9,0,0,0,0,1/d8,0,0,0,0,1])}};var T=cV.PMatrixStack=function(){this.matrixStack=[]};T.prototype.load=function(){var d7=dU.$newPMatrix();if(arguments.length===1){d7.set(arguments[0])}else{d7.set(arguments)}this.matrixStack.push(d7)};bO.prototype.$newPMatrix=function(){return new aT};by.prototype.$newPMatrix=function(){return new aM};T.prototype.push=function(){this.matrixStack.push(this.peek())};T.prototype.pop=function(){return this.matrixStack.pop()};T.prototype.peek=function(){var d7=dU.$newPMatrix();d7.set(this.matrixStack[this.matrixStack.length-1]);return d7};T.prototype.mult=function(d7){this.matrixStack[this.matrixStack.length-1].apply(d7)};cV.split=function(d8,d7){return d8.split(d7)};cV.splitTokens=function(ea,d9){if(arguments.length===1){d9="\n\t\r\u000c "}d9="["+d9+"]";var d8=[];var d7=0;var eb=ea.search(d9);while(eb>=0){if(eb===0){ea=ea.substring(1)}else{d8[d7]=ea.substring(0,eb);d7++;ea=ea.substring(eb)}eb=ea.search(d9)}if(ea.length>0){d8[d7]=ea}if(d8.length===0){d8=r}return d8};cV.append=function(d8,d7){d8[d8.length]=d7;return d8};cV.concat=function(d8,d7){return d8.concat(d7)};cV.sort=function(ec,ea){var d8=[];if(ec.length>0){var eb=ea>0?ea:ec.length;for(var d9=0;d9<eb;d9++){d8.push(ec[d9])}if(typeof ec[0]==="string"){d8.sort()}else{d8.sort(function(ee,ed){return ee-ed})}if(ea>0){for(var d7=d8.length;d7<ec.length;d7++){d8.push(ec[d7])}}}return d8};cV.splice=function(eb,ea,d8){if(ea.length===0){return eb}if(ea instanceof Array){for(var d9=0,d7=d8;d9<ea.length;d7++,d9++){eb.splice(d7,0,ea[d9])}}else{eb.splice(d8,0,ea)}return eb};cV.subset=function(ea,d9,d8){var d7=d8!==r?d9+d8:ea.length;return ea.slice(d9,d7)};cV.join=function(d8,d7){return d8.join(d7)};cV.shorten=function(ea){var d8=[];var d7=ea.length;for(var d9=0;d9<d7;d9++){d8[d9]=ea[d9]}d8.pop();return d8};cV.expand=function(d9,ea){var d8=d9.slice(0),d7=ea||d9.length*2;d8.length=d7;return d8};cV.arrayCopy=function(){var ed,eb=0,d9,d8=0,ec;if(arguments.length===2){ed=arguments[0];d9=arguments[1];ec=ed.length}else{if(arguments.length===3){ed=arguments[0];d9=arguments[1];ec=arguments[2]}else{if(arguments.length===5){ed=arguments[0];eb=arguments[1];d9=arguments[2];d8=arguments[3];ec=arguments[4]}}}for(var ea=eb,d7=d8;ea<ec+eb;ea++,d7++){if(d9[d7]!==r){d9[d7]=ed[ea]}else{throw"array index out of bounds exception"}}};cV.reverse=function(d7){return d7.reverse()};cV.mix=function(d8,d7,d9){return d8+((d7-d8)*d9>>8)};cV.peg=function(d7){return d7<0?0:d7>255?255:d7};cV.modes=function(){var ec=4278190080,d9=16711680,d8=65280,eb=255,ea=o.min,d7=o.max;function ed(ei,el,eh,eq,es,er,ej,en,em,ef,eg){var ep=ea(((ei&4278190080)>>>24)+el,255)<<24;var ee=eh+((em-eh)*el>>8);ee=(ee<0?0:ee>255?255:ee)<<16;var ek=eq+((ef-eq)*el>>8);ek=(ek<0?0:ek>255?255:ek)<<8;var eo=es+((eg-es)*el>>8);eo=eo<0?0:eo>255?255:eo;return ep|ee|ek|eo}return{replace:function(ef,ee){return ee},blend:function(eg,ef){var ei=(ef&ec)>>>24,ee=eg&d9,ek=eg&d8,em=eg&eb,el=ef&d9,eh=ef&d8,ej=ef&eb;return ea(((eg&ec)>>>24)+ei,255)<<24|ee+((el-ee)*ei>>8)&d9|ek+((eh-ek)*ei>>8)&d8|em+((ej-em)*ei>>8)&eb},add:function(ef,ee){var eg=(ee&ec)>>>24;return ea(((ef&ec)>>>24)+eg,255)<<24|ea((ef&d9)+((ee&d9)>>8)*eg,d9)&d9|ea((ef&d8)+((ee&d8)>>8)*eg,d8)&d8|ea((ef&eb)+((ee&eb)*eg>>8),eb)},subtract:function(ef,ee){var eg=(ee&ec)>>>24;return ea(((ef&ec)>>>24)+eg,255)<<24|d7((ef&d9)-((ee&d9)>>8)*eg,d8)&d9|d7((ef&d8)-((ee&d8)>>8)*eg,eb)&d8|d7((ef&eb)-((ee&eb)*eg>>8),0)},lightest:function(ef,ee){var eg=(ee&ec)>>>24;return ea(((ef&ec)>>>24)+eg,255)<<24|d7(ef&d9,((ee&d9)>>8)*eg)&d9|d7(ef&d8,((ee&d8)>>8)*eg)&d8|d7(ef&eb,(ee&eb)*eg>>8)},darkest:function(eg,ef){var ei=(ef&ec)>>>24,ee=eg&d9,ek=eg&d8,em=eg&eb,el=ea(eg&d9,((ef&d9)>>8)*ei),eh=ea(eg&d8,((ef&d8)>>8)*ei),ej=ea(eg&eb,(ef&eb)*ei>>8);return ea(((eg&ec)>>>24)+ei,255)<<24|ee+((el-ee)*ei>>8)&d9|ek+((eh-ek)*ei>>8)&d8|em+((ej-em)*ei>>8)&eb},difference:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg>eo?eg-eo:eo-eg,ee=en>ej?en-ej:ej-en,ef=ep>em?ep-em:em-ep;return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},exclusion:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg+eo-(eg*eo>>7),ee=en+ej-(en*ej>>7),ef=ep+em-(ep*em>>7);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},multiply:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg*eo>>8,ee=en*ej>>8,ef=ep*em>>8;return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},screen:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=255-((255-eg)*(255-eo)>>8),ee=255-((255-en)*(255-ej)>>8),ef=255-((255-ep)*(255-em)>>8);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},hard_light:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eo<128?eg*eo>>7:255-((255-eg)*(255-eo)>>7),ee=ej<128?en*ej>>7:255-((255-en)*(255-ej)>>7),ef=em<128?ep*em>>7:255-((255-ep)*(255-em)>>7);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},soft_light:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=(eg*eo>>7)+(eg*eg>>8)-(eg*eg*eo>>15),ee=(en*ej>>7)+(en*en>>8)-(en*en*ej>>15),ef=(ep*em>>7)+(ep*ep>>8)-(ep*ep*em>>15);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},overlay:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg<128?eg*eo>>7:255-((255-eg)*(255-eo)>>7),ee=en<128?en*ej>>7:255-((255-en)*(255-ej)>>7),ef=ep<128?ep*em>>7:255-((255-ep)*(255-em)>>7);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},dodge:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb;var el=255;if(eo!==255){el=(eg<<8)/(255-eo);el=el<0?0:el>255?255:el}var ee=255;if(ej!==255){ee=(en<<8)/(255-ej);ee=ee<0?0:ee>255?255:ee}var ef=255;if(em!==255){ef=(ep<<8)/(255-em);ef=ef<0?0:ef>255?255:ef}return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},burn:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb;var el=0;if(eo!==0){el=(255-eg<<8)/eo;el=255-(el<0?0:el>255?255:el)}var ee=0;if(ej!==0){ee=(255-en<<8)/ej;ee=255-(ee<0?0:ee>255?255:ee)}var ef=0;if(em!==0){ef=(255-ep<<8)/em;ef=255-(ef<0?0:ef>255?255:ef)}return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)}}}();function dD(ec,eb,d9,d8){var d7,ea,ee,ef;if(cX===3){var ed=cV.color.toRGB(ec,eb,d9);d7=ed[0];ea=ed[1];ee=ed[2]}else{d7=o.round(255*(ec/bG));ea=o.round(255*(eb/bF));ee=o.round(255*(d9/bD))}ef=o.round(255*(d8/bR));d7=d7<0?0:d7;ea=ea<0?0:ea;ee=ee<0?0:ee;ef=ef<0?0:ef;d7=d7>255?255:d7;ea=ea>255?255:ea;ee=ee>255?255:ee;ef=ef>255?255:ef;return ef<<24&4278190080|d7<<16&16711680|ea<<8&65280|ee&255}function dG(d7,d9){var d8;if(d7&4278190080){d8=o.round(255*(d9/bR));d8=d8>255?255:d8;d8=d8<0?0:d8;return d7-(d7&4278190080)+(d8<<24&4278190080)}if(cX===1){return dD(d7,d7,d7,d9)}if(cX===3){return dD(0,0,d7/bG*bD,d9)}}function dI(d7){if(d7<=bG&&d7>=0){if(cX===1){return dD(d7,d7,d7,bR)}if(cX===3){return dD(0,0,d7/bG*bD,bR)}}if(d7){if(d7>2147483647){d7-=4294967296}return d7}}cV.color=function(d7,ea,d9,d8){if(d7!==r&&ea!==r&&d9!==r&&d8!==r){return dD(d7,ea,d9,d8)}if(d7!==r&&ea!==r&&d9!==r){return dD(d7,ea,d9,bR)}if(d7!==r&&ea!==r){return dG(d7,ea)}if(typeof d7==="number"){return dI(d7)}return dD(bG,bF,bD,bR)};cV.color.toString=function(d7){return"rgba("+((d7>>16)&255)+","+((d7>>8)&255)+","+(d7&255)+","+((d7>>24)&255)/255+")"};cV.color.toInt=function(ea,d9,d7,d8){return d8<<24&4278190080|ea<<16&16711680|d9<<8&65280|d7&255};cV.color.toArray=function(d7){return[(d7>>16)&255,(d7>>8)&255,d7&255,(d7>>24)&255]};cV.color.toGLArray=function(d7){return[((d7>>16)&255)/255,((d7>>8)&255)/255,(d7&255)/255,((d7&4278190080)>>>24)/255]};cV.color.toRGB=function(d9,ef,ec){d9=d9>bG?bG:d9;ef=ef>bF?bF:ef;ec=ec>bD?bD:ec;d9=d9/bG*360;ef=ef/bF*100;ec=ec/bD*100;var ee=o.round(ec/100*255);if(ef===0){return[ee,ee,ee]}var ea=d9%360;var eb=ea%60;var d8=o.round(ec*(100-ef)/10000*255);var d7=o.round(ec*(6000-ef*eb)/600000*255);var ed=o.round(ec*(6000-ef*(60-eb))/600000*255);switch(o.floor(ea/60)){case 0:return[ee,ed,d8];case 1:return[d7,ee,d8];case 2:return[d8,ee,ed];case 3:return[d8,d7,ee];case 4:return[ed,d8,ee];case 5:return[ee,d8,d7]}};function aP(ee){var ed,ec,d8;ed=((ee>>16)&255)/255;ec=((ee>>8)&255)/255;d8=(ee&255)/255;var d7=cV.max(cV.max(ed,ec),d8),ea=cV.min(cV.min(ed,ec),d8),d9,eb;if(ea===d7){return[0,0,d7*bD]}eb=(d7-ea)/d7;if(ed===d7){d9=(ec-d8)/(d7-ea)}else{if(ec===d7){d9=2+(d8-ed)/(d7-ea)}else{d9=4+(ed-ec)/(d7-ea)}}d9/=6;if(d9<0){d9+=1}else{if(d9>1){d9-=1}}return[d9*bG,eb*bF,d7*bD]}cV.brightness=function(d7){return aP(d7)[2]};cV.saturation=function(d7){return aP(d7)[1]};cV.hue=function(d7){return aP(d7)[0]};cV.red=function(d7){return((d7>>16)&255)/255*bG};cV.green=function(d7){return((d7>>8)&255)/255*bF};cV.blue=function(d7){return(d7&255)/255*bD};cV.alpha=function(d7){return((d7>>24)&255)/255*bR};cV.lerpColor=function(ej,ei,ec){var eh,en,eo,ep,el,d7,ed,er,ek,es,eb,eq;var ef,ee,d8,em,eg;var ea=cV.color(ej);var d9=cV.color(ei);if(cX===3){ef=aP(ea);er=((ea>>24)&255)/bR;ee=aP(d9);eq=((d9>>24)&255)/bR;em=cV.lerp(ef[0],ee[0],ec);eg=cV.lerp(ef[1],ee[1],ec);eo=cV.lerp(ef[2],ee[2],ec);d8=cV.color.toRGB(em,eg,eo);ep=cV.lerp(er,eq,ec)*bR;return ep<<24&4278190080|(d8[0]&255)<<16|(d8[1]&255)<<8|d8[2]&255}el=(ea>>16)&255;d7=(ea>>8)&255;ed=ea&255;er=((ea>>24)&255)/bR;ek=(d9>>16)&255;es=(d9>>8)&255;eb=d9&255;eq=((d9&4278190080)>>>24)/bR;eh=cV.lerp(el,ek,ec)|0;en=cV.lerp(d7,es,ec)|0;eo=cV.lerp(ed,eb,ec)|0;ep=cV.lerp(er,eq,ec)*bR;return ep<<24&4278190080|eh<<16&16711680|en<<8&65280|eo&255};cV.colorMode=function(){cX=arguments[0];if(arguments.length>1){bG=arguments[1];bF=arguments[2]||arguments[1];bD=arguments[3]||arguments[1];bR=arguments[4]||arguments[1]}};cV.blendColor=function(d8,d7,d9){if(d9===0){return cV.modes.replace(d8,d7)}else{if(d9===1){return cV.modes.blend(d8,d7)}else{if(d9===2){return cV.modes.add(d8,d7)}else{if(d9===4){return cV.modes.subtract(d8,d7)}else{if(d9===8){return cV.modes.lightest(d8,d7)}else{if(d9===16){return cV.modes.darkest(d8,d7)}else{if(d9===32){return cV.modes.difference(d8,d7)}else{if(d9===64){return cV.modes.exclusion(d8,d7)}else{if(d9===128){return cV.modes.multiply(d8,d7)}else{if(d9===256){return cV.modes.screen(d8,d7)}else{if(d9===1024){return cV.modes.hard_light(d8,d7)}else{if(d9===2048){return cV.modes.soft_light(d8,d7)}else{if(d9===512){return cV.modes.overlay(d8,d7)}else{if(d9===4096){return cV.modes.dodge(d8,d7)}else{if(d9===8192){return 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ek=o.floor(et)&255,ei=o.floor(es)&255,eh=o.floor(er)&255;et-=o.floor(et);es-=o.floor(es);er-=o.floor(er);var eo=(3-2*et)*et*et,en=(3-2*es)*es*es,em=(3-2*er)*er*er;var ev=ea[ek]+ei,eq=ea[ev]+eh,ep=ea[ev+1]+eh,eu=ea[ek+1]+ei,el=ea[eu]+eh,ej=ea[eu+1]+eh;return d9(em,d9(en,d9(eo,d7(ea[eq],et,es,er),d7(ea[el],et-1,es,er)),d9(eo,d7(ea[ep],et,es-1,er),d7(ea[ej],et-1,es-1,er))),d9(en,d9(eo,d7(ea[eq+1],et,es,er-1),d7(ea[el+1],et-1,es,er-1)),d9(eo,d7(ea[ep+1],et,es-1,er-1),d7(ea[ej+1],et-1,es-1,er-1))))};this.noise2d=function(eh,eo){var en=o.floor(eh)&255,el=o.floor(eo)&255;eh-=o.floor(eh);eo-=o.floor(eo);var ej=(3-2*eh)*eh*eh,ei=(3-2*eo)*eo*eo;var em=ea[en]+el,ek=ea[en+1]+el;return d9(ei,d9(ej,ec(ea[em],eh,eo),ec(ea[ek],eh-1,eo)),d9(ej,ec(ea[em+1],eh,eo-1),ec(ea[ek+1],eh-1,eo-1)))};this.noise1d=function(eh){var ej=o.floor(eh)&255;eh-=o.floor(eh);var ei=(3-2*eh)*eh*eh;return d9(ei,ef(ea[ej],eh),ef(ea[ej+1],eh-1))}}var bU={generator:r,octaves:4,fallout:0.5,seed:r};cV.noise=function(d7,ee,ed){if(bU.generator===r){bU.generator=new dw(bU.seed)}var ec=bU.generator;var eb=1,d8=1,ea=0;for(var d9=0;d9<bU.octaves;++d9){eb*=bU.fallout;switch(arguments.length){case 1:ea+=eb*(1+ec.noise1d(d8*d7))/2;break;case 2:ea+=eb*(1+ec.noise2d(d8*d7,d8*ee))/2;break;case 3:ea+=eb*(1+ec.noise3d(d8*d7,d8*ee,d8*ed))/2;break}d8*=2}return ea};cV.noiseDetail=function(d8,d7){bU.octaves=d8;if(d7!==r){bU.fallout=d7}};cV.noiseSeed=function(d7){bU.seed=d7;bU.generator=r};dp.prototype.size=function(d8,eb,ea){if(cd){cV.stroke(0)}if(aF){cV.fill(255)}var d9={fillStyle:d4.fillStyle,strokeStyle:d4.strokeStyle,lineCap:d4.lineCap,lineJoin:d4.lineJoin};if(ac.style.length>0){ac.style.removeProperty("width");ac.style.removeProperty("height")}ac.width=cV.width=d8||100;ac.height=cV.height=eb||100;for(var ec in d9){if(d9.hasOwnProperty(ec)){d4[ec]=d9[ec]}}cV.textFont(U);cV.background();bY=o.max(1000,d8*eb*0.05);cV.externals.context=d4;for(var d7=0;d7<720;d7++){ag[d7]=cV.sin(d7*(o.PI/180)*0.5);bi[d7]=cV.cos(d7*(o.PI/180)*0.5)}};bO.prototype.size=function(d7,d9,d8){if(d4===r){d4=ac.getContext("2d");al=new T;c9=new T;dF=new aT;aQ=new aT}dp.prototype.size.apply(this,arguments)};by.prototype.size=function(){var d8=false;return function d7(ea,ec,eb){if(d8){throw"Multiple calls to size() for 3D renders are not allowed."}d8=true;function ed(ef){var ei=["experimental-webgl","webgl","webkit-3d"],eh;for(var eg=0,ee=ei.length;eg<ee;eg++){eh=ef.getContext(ei[eg],{antialias:false});if(eh){break}}return eh}try{ac.width=cV.width=ea||100;ac.height=cV.height=ec||100;d4=ed(ac);c6=d4.createTexture();bP=d4.createTexture()}catch(d9){D.debug(d9)}if(!d4){throw"WebGL context is not supported on this browser."}d4.viewport(0,0,ac.width,ac.height);d4.enable(d4.DEPTH_TEST);d4.enable(d4.BLEND);d4.blendFunc(d4.SRC_ALPHA,d4.ONE_MINUS_SRC_ALPHA);dM=bC(d4,ad,bX);bQ=bC(d4,bS,bf);cV.strokeWeight(1);du=bC(d4,d5,bH);d4.useProgram(du);dV("usingTexture3d",du,"usingTexture",dP);cV.lightFalloff(1,0,0);cV.shininess(1);cV.ambient(255,255,255);cV.specular(0,0,0);cV.emissive(0,0,0);bd=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,bd);d4.bufferData(d4.ARRAY_BUFFER,df,d4.STATIC_DRAW);cI=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,cI);d4.bufferData(d4.ARRAY_BUFFER,de,d4.STATIC_DRAW);di=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,di);d4.bufferData(d4.ARRAY_BUFFER,bE,d4.STATIC_DRAW);aA=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,aA);d4.bufferData(d4.ARRAY_BUFFER,aj,d4.STATIC_DRAW);b1=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,b1);d4.bufferData(d4.ARRAY_BUFFER,ah,d4.STATIC_DRAW);bc=d4.createBuffer();b7=d4.createBuffer();ar=d4.createBuffer();aE=d4.createBuffer();bz=d4.createBuffer();ae=d4.createBuffer();av=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,av);d4.bufferData(d4.ARRAY_BUFFER,new e([0,0,0]),d4.STATIC_DRAW);cG=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,cG);d4.bufferData(d4.ARRAY_BUFFER,new e([1,1,0,-1,1,0,-1,-1,0,1,-1,0]),d4.STATIC_DRAW);aa=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,aa);d4.bufferData(d4.ARRAY_BUFFER,new e([0,0,1,0,1,1,0,1]),d4.STATIC_DRAW);P=d4.createBuffer();d4.bindBuffer(d4.ELEMENT_ARRAY_BUFFER,P);d4.bufferData(d4.ELEMENT_ARRAY_BUFFER,new w([0,1,2,2,3,0]),d4.STATIC_DRAW);bT=new aM;cg=new aM;dF=new aM;aQ=new aM;da=new aM;cV.camera();cV.perspective();al=new T;c9=new T;c2=new aM;aN=new aM;aJ=new aM;bw=new aM;cc=new aM;S=new aM;S.set(-1,3,-3,1,3,-6,3,0,-3,3,0,0,1,0,0,0);dp.prototype.size.apply(this,arguments)}}();bO.prototype.ambientLight=dp.prototype.a3DOnlyFunction;by.prototype.ambientLight=function(d7,ea,ef,eg,ec,eb){if(dH===8){throw"can only create "+8+" lights"}var ed=new y(eg,ec,eb);var ee=new aM;ee.scale(1,-1,1);ee.apply(dF.array());ee.mult(ed,ed);var d8=dD(d7,ea,ef,0);var d9=[((d8>>16)&255)/255,((d8&65280)>>>8)/255,(d8&255)/255];d4.useProgram(du);dY("lights.color.3d."+dH,du,"lights"+dH+".color",d9);dY("lights.position.3d."+dH,du,"lights"+dH+".position",ed.array());dV("lights.type.3d."+dH,du,"lights"+dH+".type",0);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.directionalLight=dp.prototype.a3DOnlyFunction;by.prototype.directionalLight=function(d7,ed,ef,ee,ec,eb){if(dH===8){throw"can only create "+8+" lights"}d4.useProgram(du);var eg=new aM;eg.scale(1,-1,1);eg.apply(dF.array());eg=eg.array();var d9=[eg[0]*ee+eg[4]*ec+eg[8]*eb,eg[1]*ee+eg[5]*ec+eg[9]*eb,eg[2]*ee+eg[6]*ec+eg[10]*eb];var d8=dD(d7,ed,ef,0);var ea=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];dY("lights.color.3d."+dH,du,"lights"+dH+".color",ea);dY("lights.position.3d."+dH,du,"lights"+dH+".position",d9);dV("lights.type.3d."+dH,du,"lights"+dH+".type",1);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.lightFalloff=dp.prototype.a3DOnlyFunction;by.prototype.lightFalloff=function(d8,d7,d9){d4.useProgram(du);dY("falloff3d",du,"falloff",[d8,d7,d9])};bO.prototype.lightSpecular=dp.prototype.a3DOnlyFunction;by.prototype.lightSpecular=function(eb,ea,d7){var d8=dD(eb,ea,d7,0);var d9=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];d4.useProgram(du);dY("specular3d",du,"specular",d9)};cV.lights=function(){cV.ambientLight(128,128,128);cV.directionalLight(128,128,128,0,0,-1);cV.lightFalloff(1,0,0);cV.lightSpecular(0,0,0)};bO.prototype.pointLight=dp.prototype.a3DOnlyFunction;by.prototype.pointLight=function(d7,ea,ef,eg,ec,eb){if(dH===8){throw"can only create "+8+" lights"}var ed=new y(eg,ec,eb);var ee=new aM;ee.scale(1,-1,1);ee.apply(dF.array());ee.mult(ed,ed);var d8=dD(d7,ea,ef,0);var d9=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];d4.useProgram(du);dY("lights.color.3d."+dH,du,"lights"+dH+".color",d9);dY("lights.position.3d."+dH,du,"lights"+dH+".position",ed.array());dV("lights.type.3d."+dH,du,"lights"+dH+".type",2);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.noLights=dp.prototype.a3DOnlyFunction;by.prototype.noLights=function(){dH=0;d4.useProgram(du);dV("lightCount3d",du,"lightCount",dH)};bO.prototype.spotLight=dp.prototype.a3DOnlyFunction;by.prototype.spotLight=function(d7,ef,ek,el,ej,eh,eg,ee,ec,eb,ed){if(dH===8){throw"can only create "+8+" lights"}d4.useProgram(du);var ei=new y(el,ej,eh);var em=new aM;em.scale(1,-1,1);em.apply(dF.array());em.mult(ei,ei);em=em.array();var d9=[em[0]*eg+em[4]*ee+em[8]*ec,em[1]*eg+em[5]*ee+em[9]*ec,em[2]*eg+em[6]*ee+em[10]*ec];var d8=dD(d7,ef,ek,0);var ea=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];dY("lights.color.3d."+dH,du,"lights"+dH+".color",ea);dY("lights.position.3d."+dH,du,"lights"+dH+".position",ei.array());dY("lights.direction.3d."+dH,du,"lights"+dH+".direction",d9);dY("lights.concentration.3d."+dH,du,"lights"+dH+".concentration",ed);dY("lights.angle.3d."+dH,du,"lights"+dH+".angle",eb);dV("lights.type.3d."+dH,du,"lights"+dH+".type",3);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.beginCamera=function(){throw"beginCamera() is not available in 2D mode"};by.prototype.beginCamera=function(){if(ao){throw"You cannot call beginCamera() again before calling endCamera()"}ao=true;dF=cg;aQ=bT};bO.prototype.endCamera=function(){throw"endCamera() is not available in 2D mode"};by.prototype.endCamera=function(){if(!ao){throw"You cannot call endCamera() before calling beginCamera()"}dF.set(bT);aQ.set(cg);ao=false};cV.camera=function(ei,eh,ef,ed,eb,ea,eq,eo,em){if(ei===r){dj=cV.width/2;dh=cV.height/2;dg=dh/o.tan(cJ/2);ei=dj;eh=dh;ef=dg;ed=dj;eb=dh;ea=0;eq=0;eo=1;em=0}var ec=new y(ei-ed,eh-eb,ef-ea);var ee=new y(eq,eo,em);ec.normalize();var eg=y.cross(ee,ec);ee=y.cross(ec,eg);eg.normalize();ee.normalize();var er=eg.x,ep=eg.y,en=eg.z;var d9=ee.x,d8=ee.y,d7=ee.z;var el=ec.x,ek=ec.y,ej=ec.z;bT.set(er,ep,en,0,d9,d8,d7,0,el,ek,ej,0,0,0,0,1);bT.translate(-ei,-eh,-ef);cg.reset();cg.invApply(er,ep,en,0,d9,d8,d7,0,el,ek,ej,0,0,0,0,1);cg.translate(ei,eh,ef);dF.set(bT);aQ.set(cg)};cV.perspective=function(eb,d9,ec,d8){if(arguments.length===0){dh=ac.height/2;dg=dh/o.tan(cJ/2);aW=dg/10;au=dg*10;b4=cV.width/cV.height;eb=cJ;d9=b4;ec=aW;d8=au}var ed,d7,ee,ea;ed=ec*o.tan(eb/2);d7=-ed;ee=ed*d9;ea=d7*d9;cV.frustum(ea,ee,d7,ed,ec,d8)};bO.prototype.frustum=function(){throw"Processing.js: frustum() is not supported in 2D mode"};by.prototype.frustum=function(ed,d9,d8,ec,eb,d7){ch=true;da=new aM;da.set(2*eb/(d9-ed),0,(d9+ed)/(d9-ed),0,0,2*eb/(ec-d8),(ec+d8)/(ec-d8),0,0,0,-(d7+eb)/(d7-eb),-(2*d7*eb)/(d7-eb),0,0,-1,0);var ea=new aM;ea.set(da);ea.transpose();d4.useProgram(dM);a5("projection2d",dM,"projection",false,ea.array());d4.useProgram(du);a5("projection3d",du,"projection",false,ea.array());d4.useProgram(bQ);a5("uProjectionUS",bQ,"uProjection",false,ea.array())};cV.ortho=function(d8,ej,d7,eh,ee,ed){if(arguments.length===0){d8=0;ej=cV.width;d7=0;eh=cV.height;ee=-10;ed=10}var ei=2/(ej-d8);var eg=2/(eh-d7);var ef=-2/(ed-ee);var ec=-(ej+d8)/(ej-d8);var eb=-(eh+d7)/(eh-d7);var ea=-(ed+ee)/(ed-ee);da=new aM;da.set(ei,0,0,ec,0,eg,0,eb,0,0,ef,ea,0,0,0,1);var d9=new aM;d9.set(da);d9.transpose();d4.useProgram(dM);a5("projection2d",dM,"projection",false,d9.array());d4.useProgram(du);a5("projection3d",du,"projection",false,d9.array());d4.useProgram(bQ);a5("uProjectionUS",bQ,"uProjection",false,d9.array());ch=false};cV.printProjection=function(){da.print()};cV.printCamera=function(){bT.print()};bO.prototype.box=dp.prototype.a3DOnlyFunction;by.prototype.box=function(d9,ec,ee){if(!ec||!ee){ec=ee=d9}var eb=new aM;eb.scale(d9,ec,ee);var d8=new aM;d8.scale(1,-1,1);d8.apply(dF.array());d8.transpose();if(aF){d4.useProgram(du);a5("model3d",du,"model",false,eb.array());a5("view3d",du,"view",false,d8.array());d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",bl);if(dH>0){var ea=new aM;ea.set(d8);var d7=new aM;d7.set(eb);ea.mult(d7);var ed=new aM;ed.set(ea);ed.invert();ed.transpose();a5("normalTransform3d",du,"normalTransform",false,ed.array());db("normal3d",du,"Normal",3,cI)}else{cf("normal3d",du,"Normal")}db("vertex3d",du,"Vertex",3,bd);cf("aColor3d",du,"aColor");cf("aTexture3d",du,"aTexture");d4.drawArrays(d4.TRIANGLES,0,df.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)}if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,eb.array());a5("view2d",dM,"view",false,d8.array());dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,di);cf("aTextureCoord2d",dM,"aTextureCoord");d4.drawArrays(d4.LINES,0,bE.length/3)}};var cC=function(){var d8;cE=[];for(d8=0;d8<bK;d8++){cE.push(0);cE.push(-1);cE.push(0);cE.push(bq[d8]);cE.push(bp[d8]);cE.push(bo[d8])}cE.push(0);cE.push(-1);cE.push(0);cE.push(bq[0]);cE.push(bp[0]);cE.push(bo[0]);var ec,d9,eb;var ea=0;for(d8=2;d8<bJ;d8++){ec=d9=ea;ea+=bK;eb=ea;for(var d7=0;d7<bK;d7++){cE.push(bq[ec]);cE.push(bp[ec]);cE.push(bo[ec++]);cE.push(bq[eb]);cE.push(bp[eb]);cE.push(bo[eb++])}ec=d9;eb=ea;cE.push(bq[ec]);cE.push(bp[ec]);cE.push(bo[ec]);cE.push(bq[eb]);cE.push(bp[eb]);cE.push(bo[eb])}for(d8=0;d8<bK;d8++){eb=ea+d8;cE.push(bq[eb]);cE.push(bp[eb]);cE.push(bo[eb]);cE.push(0);cE.push(1);cE.push(0)}cE.push(bq[ea]);cE.push(bp[ea]);cE.push(bo[ea]);cE.push(0);cE.push(1);cE.push(0);d4.bindBuffer(d4.ARRAY_BUFFER,bc);d4.bufferData(d4.ARRAY_BUFFER,new e(cE),d4.STATIC_DRAW)};cV.sphereDetail=function(d8,ej){var ee;if(arguments.length===1){d8=ej=arguments[0]}if(d8<3){d8=3}if(ej<2){ej=2}if(d8===bK&&ej===bJ){return}var ei=720/d8;var ec=new e(d8);var d9=new e(d8);for(ee=0;ee<d8;ee++){ec[ee]=bi[ee*ei%720|0];d9[ee]=ag[ee*ei%720|0]}var eh=d8*(ej-1)+2;var eg=0;bq=new e(eh);bp=new e(eh);bo=new e(eh);var ef=720*0.5/ej;var eb=ef;for(ee=1;ee<ej;ee++){var ea=ag[eb%720|0];var d7=-bi[eb%720|0];for(var ed=0;ed<d8;ed++){bq[eg]=ec[ed]*ea;bp[eg]=d7;bo[eg++]=d9[ed]*ea}eb+=ef}bK=d8;bJ=ej;cC()};bO.prototype.sphere=dp.prototype.a3DOnlyFunction;by.prototype.sphere=function(){var eb=arguments[0];if(bK<3||bJ<2){cV.sphereDetail(30)}var ea=new aM;ea.scale(eb,eb,eb);var d8=new aM;d8.scale(1,-1,1);d8.apply(dF.array());d8.transpose();if(aF){if(dH>0){var d9=new aM;d9.set(d8);var d7=new aM;d7.set(ea);d9.mult(d7);var ec=new aM;ec.set(d9);ec.invert();ec.transpose();a5("normalTransform3d",du,"normalTransform",false,ec.array());db("normal3d",du,"Normal",3,bc)}else{cf("normal3d",du,"Normal")}d4.useProgram(du);cf("aTexture3d",du,"aTexture");a5("model3d",du,"model",false,ea.array());a5("view3d",du,"view",false,d8.array());db("vertex3d",du,"Vertex",3,bc);cf("aColor3d",du,"aColor");d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",bl);d4.drawArrays(d4.TRIANGLE_STRIP,0,cE.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)}if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,ea.array());a5("view2d",dM,"view",false,d8.array());db("vertex2d",dM,"Vertex",3,bc);cf("aTextureCoord2d",dM,"aTextureCoord");dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);d4.drawArrays(d4.LINE_STRIP,0,cE.length/3)}};cV.modelX=function(ed,ec,eb){var ef=dF.array();var eh=cg.array();var d7=ef[0]*ed+ef[1]*ec+ef[2]*eb+ef[3];var eg=ef[4]*ed+ef[5]*ec+ef[6]*eb+ef[7];var ee=ef[8]*ed+ef[9]*ec+ef[10]*eb+ef[11];var d8=ef[12]*ed+ef[13]*ec+ef[14]*eb+ef[15];var d9=eh[0]*d7+eh[1]*eg+eh[2]*ee+eh[3]*d8;var ea=eh[12]*d7+eh[13]*eg+eh[14]*ee+eh[15]*d8;return ea!==0?d9/ea:d9};cV.modelY=function(ed,ec,eb){var ef=dF.array();var eh=cg.array();var d7=ef[0]*ed+ef[1]*ec+ef[2]*eb+ef[3];var eg=ef[4]*ed+ef[5]*ec+ef[6]*eb+ef[7];var ee=ef[8]*ed+ef[9]*ec+ef[10]*eb+ef[11];var d8=ef[12]*ed+ef[13]*ec+ef[14]*eb+ef[15];var d9=eh[4]*d7+eh[5]*eg+eh[6]*ee+eh[7]*d8;var ea=eh[12]*d7+eh[13]*eg+eh[14]*ee+eh[15]*d8;return ea!==0?d9/ea:d9};cV.modelZ=function(ed,ec,eb){var ef=dF.array();var eh=cg.array();var d7=ef[0]*ed+ef[1]*ec+ef[2]*eb+ef[3];var eg=ef[4]*ed+ef[5]*ec+ef[6]*eb+ef[7];var ee=ef[8]*ed+ef[9]*ec+ef[10]*eb+ef[11];var d9=ef[12]*ed+ef[13]*ec+ef[14]*eb+ef[15];var d8=eh[8]*d7+eh[9]*eg+eh[10]*ee+eh[11]*d9;var ea=eh[12]*d7+eh[13]*eg+eh[14]*ee+eh[15]*d9;return ea!==0?d8/ea:d8};bO.prototype.ambient=dp.prototype.a3DOnlyFunction;by.prototype.ambient=function(ea,d9,d8){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);var d7=cV.color(ea,d9,d8);dY("mat_ambient3d",du,"mat_ambient",cV.color.toGLArray(d7).slice(0,3))};bO.prototype.emissive=dp.prototype.a3DOnlyFunction;by.prototype.emissive=function(ea,d9,d8){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);var d7=cV.color(ea,d9,d8);dY("mat_emissive3d",du,"mat_emissive",cV.color.toGLArray(d7).slice(0,3))};bO.prototype.shininess=dp.prototype.a3DOnlyFunction;by.prototype.shininess=function(d7){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);dY("shininess3d",du,"shininess",d7)};bO.prototype.specular=dp.prototype.a3DOnlyFunction;by.prototype.specular=function(ea,d9,d8){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);var d7=cV.color(ea,d9,d8);dY("mat_specular3d",du,"mat_specular",cV.color.toGLArray(d7).slice(0,3))};cV.screenX=function(ee,ed,ec){var eg=dF.array();if(eg.length===16){var d7=eg[0]*ee+eg[1]*ed+eg[2]*ec+eg[3];var eh=eg[4]*ee+eg[5]*ed+eg[6]*ec+eg[7];var ef=eg[8]*ee+eg[9]*ed+eg[10]*ec+eg[11];var d8=eg[12]*ee+eg[13]*ed+eg[14]*ec+eg[15];var eb=da.array();var d9=eb[0]*d7+eb[1]*eh+eb[2]*ef+eb[3]*d8;var ea=eb[12]*d7+eb[13]*eh+eb[14]*ef+eb[15]*d8;if(ea!==0){d9/=ea}return cV.width*(1+d9)/2}return dF.multX(ee,ed)};cV.screenY=function az(ee,ed,ec){var eg=dF.array();if(eg.length===16){var d7=eg[0]*ee+eg[1]*ed+eg[2]*ec+eg[3];var eh=eg[4]*ee+eg[5]*ed+eg[6]*ec+eg[7];var ef=eg[8]*ee+eg[9]*ed+eg[10]*ec+eg[11];var d8=eg[12]*ee+eg[13]*ed+eg[14]*ec+eg[15];var eb=da.array();var d9=eb[4]*d7+eb[5]*eh+eb[6]*ef+eb[7]*d8;var ea=eb[12]*d7+eb[13]*eh+eb[14]*ef+eb[15]*d8;if(ea!==0){d9/=ea}return cV.height*(1+d9)/2}return dF.multY(ee,ed)};cV.screenZ=function ax(ee,ed,ec){var eg=dF.array();if(eg.length!==16){return 0}var eb=da.array();var d7=eg[0]*ee+eg[1]*ed+eg[2]*ec+eg[3];var eh=eg[4]*ee+eg[5]*ed+eg[6]*ec+eg[7];var ef=eg[8]*ee+eg[9]*ed+eg[10]*ec+eg[11];var d9=eg[12]*ee+eg[13]*ed+eg[14]*ec+eg[15];var d8=eb[8]*d7+eb[9]*eh+eb[10]*ef+eb[11]*d9;var ea=eb[12]*d7+eb[13]*eh+eb[14]*ef+eb[15]*d9;if(ea!==0){d8/=ea}return(d8+1)/2};dp.prototype.fill=function(){var d7=cV.color(arguments[0],arguments[1],arguments[2],arguments[3]);if(d7===aX&&aF){return}aF=true;aX=d7};bO.prototype.fill=function(){dp.prototype.fill.apply(this,arguments);ap=true};by.prototype.fill=function(){dp.prototype.fill.apply(this,arguments);bl=cV.color.toGLArray(aX)};function bk(){if(aF){if(ap){d4.fillStyle=cV.color.toString(aX);ap=false}d4.fill()}}cV.noFill=function(){aF=false};dp.prototype.stroke=function(){var d7=cV.color(arguments[0],arguments[1],arguments[2],arguments[3]);if(d7===cu&&cd){return}cd=true;cu=d7};bO.prototype.stroke=function(){dp.prototype.stroke.apply(this,arguments);b2=true};by.prototype.stroke=function(){dp.prototype.stroke.apply(this,arguments);cZ=cV.color.toGLArray(cu)};function dc(){if(cd){if(b2){d4.strokeStyle=cV.color.toString(cu);b2=false}d4.stroke()}}cV.noStroke=function(){cd=false};dp.prototype.strokeWeight=function(d7){dS=d7};bO.prototype.strokeWeight=function(d7){dp.prototype.strokeWeight.apply(this,arguments);d4.lineWidth=d7};by.prototype.strokeWeight=function(d7){dp.prototype.strokeWeight.apply(this,arguments);d4.useProgram(dM);dY("pointSize2d",dM,"pointSize",d7);d4.useProgram(bQ);dY("pointSizeUnlitShape",bQ,"pointSize",d7);d4.lineWidth(d7)};cV.strokeCap=function(d7){dU.$ensureContext().lineCap=d7};cV.strokeJoin=function(d7){dU.$ensureContext().lineJoin=d7};bO.prototype.smooth=function(){dK=true;var d7=ac.style;d7.setProperty("image-rendering","optimizeQuality","important");d7.setProperty("-ms-interpolation-mode","bicubic","important");if(d4.hasOwnProperty("mozImageSmoothingEnabled")){d4.mozImageSmoothingEnabled=true}};by.prototype.smooth=E;bO.prototype.noSmooth=function(){dK=false;var d7=ac.style;d7.setProperty("image-rendering","optimizeSpeed","important");d7.setProperty("image-rendering","-moz-crisp-edges","important");d7.setProperty("image-rendering","-webkit-optimize-contrast","important");d7.setProperty("image-rendering","optimize-contrast","important");d7.setProperty("-ms-interpolation-mode","nearest-neighbor","important");if(d4.hasOwnProperty("mozImageSmoothingEnabled")){d4.mozImageSmoothingEnabled=false}};by.prototype.noSmooth=E;bO.prototype.point=function(d7,d8){if(!cd){return}d7=o.round(d7);d8=o.round(d8);d4.fillStyle=cV.color.toString(cu);ap=true;if(dS>1){d4.beginPath();d4.arc(d7,d8,dS/2,0,6.283185307179586,false);d4.fill()}else{d4.fillRect(d7,d8,1,1)}};by.prototype.point=function(d7,eb,ea){var d9=new aM;d9.translate(d7,eb,ea||0);d9.transpose();var d8=new aM;d8.scale(1,-1,1);d8.apply(dF.array());d8.transpose();d4.useProgram(dM);a5("model2d",dM,"model",false,d9.array());a5("view2d",dM,"view",false,d8.array());if(dS>0&&cd){dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,av);cf("aTextureCoord2d",dM,"aTextureCoord");d4.drawArrays(d4.POINTS,0,1)}};cV.beginShape=function(d7){dN=d7;d2=[];a7=[]};bO.prototype.vertex=function(d7,eb,ea,d9){var d8=[];if(dr){dr=false}d8.isVert=true;d8[0]=d7;d8[1]=eb;d8[2]=0;d8[3]=ea;d8[4]=d9;d8[5]=aX;d8[6]=cu;a7.push(d8)};by.prototype.vertex=function(d7,ec,eb,ea,d9){var d8=[];if(dr){dr=false}d8.isVert=true;if(d9===r&&dP){d9=ea;ea=eb;eb=0}if(ea!==r&&d9!==r){if(d0===2){ea/=cr.width;d9/=cr.height}ea=ea>1?1:ea;ea=ea<0?0:ea;d9=d9>1?1:d9;d9=d9<0?0:d9}d8[0]=d7;d8[1]=ec;d8[2]=eb||0;d8[3]=ea||0;d8[4]=d9||0;d8[5]=bl[0];d8[6]=bl[1];d8[7]=bl[2];d8[8]=bl[3];d8[9]=cZ[0];d8[10]=cZ[1];d8[11]=cZ[2];d8[12]=cZ[3];d8[13]=a4;d8[14]=a3;d8[15]=a2;a7.push(d8)};var dX=function(d9,d8){var d7=new aM;d7.scale(1,-1,1);d7.apply(dF.array());d7.transpose();d4.useProgram(bQ);a5("uViewUS",bQ,"uView",false,d7.array());db("aVertexUS",bQ,"aVertex",3,av);d4.bufferData(d4.ARRAY_BUFFER,new e(d9),d4.STREAM_DRAW);db("aColorUS",bQ,"aColor",4,aE);d4.bufferData(d4.ARRAY_BUFFER,new e(d8),d4.STREAM_DRAW);d4.drawArrays(d4.POINTS,0,d9.length/3)};var bg=function(eb,ea,d9){var d8;if(ea==="LINES"){d8=d4.LINES}else{if(ea==="LINE_LOOP"){d8=d4.LINE_LOOP}else{d8=d4.LINE_STRIP}}var d7=new aM;d7.scale(1,-1,1);d7.apply(dF.array());d7.transpose();d4.useProgram(bQ);a5("uViewUS",bQ,"uView",false,d7.array());db("aVertexUS",bQ,"aVertex",3,b7);d4.bufferData(d4.ARRAY_BUFFER,new e(eb),d4.STREAM_DRAW);db("aColorUS",bQ,"aColor",4,bz);d4.bufferData(d4.ARRAY_BUFFER,new e(d9),d4.STREAM_DRAW);d4.drawArrays(d8,0,eb.length/3)};var dk=function(ec,eb,ea,d9){var d8;if(eb==="TRIANGLES"){d8=d4.TRIANGLES}else{if(eb==="TRIANGLE_FAN"){d8=d4.TRIANGLE_FAN}else{d8=d4.TRIANGLE_STRIP}}var d7=new aM;d7.scale(1,-1,1);d7.apply(dF.array());d7.transpose();d4.useProgram(du);a5("model3d",du,"model",false,[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);a5("view3d",du,"view",false,d7.array());d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",[-1,0,0,0]);db("vertex3d",du,"Vertex",3,ar);d4.bufferData(d4.ARRAY_BUFFER,new e(ec),d4.STREAM_DRAW);if(dP&&bb!==null){bt(ea)}db("aColor3d",du,"aColor",4,aE);d4.bufferData(d4.ARRAY_BUFFER,new e(ea),d4.STREAM_DRAW);cf("normal3d",du,"Normal");if(dP){dV("usingTexture3d",du,"usingTexture",dP);db("aTexture3d",du,"aTexture",2,ae);d4.bufferData(d4.ARRAY_BUFFER,new e(d9),d4.STREAM_DRAW)}d4.drawArrays(d8,0,ec.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)};function cR(){bk();dc();d4.closePath()}bO.prototype.endShape=function(ee){if(a7.length===0){return}var ea=ee===2;if(ea){a7.push(a7[0])}var d9=[];var d7=[];var eg=[];var ej=[];var ec=[];var ef;dr=true;var ed,eb,d8;var ei=a7.length;for(ed=0;ed<ei;ed++){ef=a7[ed];for(eb=0;eb<3;eb++){d7.push(ef[eb])}}for(ed=0;ed<ei;ed++){ef=a7[ed];for(eb=5;eb<9;eb++){eg.push(ef[eb])}}for(ed=0;ed<ei;ed++){ef=a7[ed];for(eb=9;eb<13;eb++){ej.push(ef[eb])}}for(ed=0;ed<ei;ed++){ef=a7[ed];ec.push(ef[3]);ec.push(ef[4])}if(dL&&(dN===20||dN===r)){if(ei>3){var 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ea=ee===2;var d9=[];var d7=[];var eg=[];var ej=[];var ec=[];var ef;dr=true;var ed,eb,d8;var 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eb=0;eb<6&&ec;eb++){ec=ee[eb]===ea[eb]}if(ec){if(d8===d7){if(ef>ed){d9=ef;ef=ed;ed=d9}ed++;if(dS%2===1){d4.translate(0.5,0)}}else{if(ef===ed){if(d8>d7){d9=d8;d8=d7;d7=d9}d7++;if(dS%2===1){d4.translate(0,0.5)}}}if(dS===1){eg=d4.lineCap;d4.lineCap="butt"}}d4.beginPath();d4.moveTo(d8||0,ef||0);d4.lineTo(d7||0,ed||0);dc();if(ec){if(d8===d7&&dS%2===1){d4.translate(-0.5,0)}else{if(ef===ed&&dS%2===1){d4.translate(0,-0.5)}}if(dS===1){d4.lineCap=eg}}};by.prototype.line=function(d9,ec,ee,d8,ea,ed){if(ea===r||ed===r){ed=0;ea=d8;d8=ee;ee=0}if(d9===d8&&ec===ea&&ee===ed){cV.point(d9,ec,ee);return}var eb=[d9,ec,ee,d8,ea,ed];var d7=new aM;d7.scale(1,-1,1);d7.apply(dF.array());d7.transpose();if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);a5("view2d",dM,"view",false,d7.array());dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,b7);cf("aTextureCoord2d",dM,"aTextureCoord");d4.bufferData(d4.ARRAY_BUFFER,new e(eb),d4.STREAM_DRAW);d4.drawArrays(d4.LINES,0,2)}};bO.prototype.bezier=function(){if(arguments.length!==8){throw"You must use 8 parameters for bezier() in 2D mode"}cV.beginShape();cV.vertex(arguments[0],arguments[1]);cV.bezierVertex(arguments[2],arguments[3],arguments[4],arguments[5],arguments[6],arguments[7]);cV.endShape()};by.prototype.bezier=function(){if(arguments.length!==12){throw"You must use 12 parameters for bezier() in 3D mode"}cV.beginShape();cV.vertex(arguments[0],arguments[1],arguments[2]);cV.bezierVertex(arguments[3],arguments[4],arguments[5],arguments[6],arguments[7],arguments[8],arguments[9],arguments[10],arguments[11]);cV.endShape()};cV.bezierDetail=function(d7){cx=d7};cV.bezierPoint=function(d8,d7,eb,ea,d9){return(1-d9)*(1-d9)*(1-d9)*d8+3*(1-d9)*(1-d9)*d9*d7+3*(1-d9)*d9*d9*eb+d9*d9*d9*ea};cV.bezierTangent=function(d8,d7,eb,ea,d9){return 3*d9*d9*(-d8+3*d7-3*eb+ea)+6*d9*(d8-2*d7+eb)+3*(-d8+d7)};cV.curvePoint=function(d8,d7,eb,ea,d9){return 0.5*(2*d7+(-d8+eb)*d9+(2*d8-5*d7+4*eb-ea)*d9*d9+(-d8+3*d7-3*eb+ea)*d9*d9*d9)};cV.curveTangent=function(d8,d7,eb,ea,d9){return 0.5*(-d8+eb+2*(2*d8-5*d7+4*eb-ea)*d9+3*(-d8+3*d7-3*eb+ea)*d9*d9)};cV.triangle=function(ea,ec,d8,eb,d7,d9){cV.beginShape(9);cV.vertex(ea,ec,0);cV.vertex(d8,eb,0);cV.vertex(d7,d9,0);cV.endShape()};cV.quad=function(ec,ee,ea,ed,d8,eb,d7,d9){cV.beginShape(16);cV.vertex(ec,ee,0);cV.vertex(ea,ed,0);cV.vertex(d8,eb,0);cV.vertex(d7,d9,0);cV.endShape()};var bL=function(ed,ec,d7,ee,eg,eb,ef,d8){if(d8===r){eb=eg;ef=eg;d8=eg}var d9=d7/2,ea=ee/2;if(eg>d9||eg>ea){eg=o.min(d9,ea)}if(eb>d9||eb>ea){eb=o.min(d9,ea)}if(ef>d9||ef>ea){ef=o.min(d9,ea)}if(d8>d9||d8>ea){d8=o.min(d9,ea)}if(!aF||cd){d4.translate(0.5,0.5)}d4.beginPath();d4.moveTo(ed+eg,ec);d4.lineTo(ed+d7-eb,ec);d4.quadraticCurveTo(ed+d7,ec,ed+d7,ec+eb);d4.lineTo(ed+d7,ec+ee-ef);d4.quadraticCurveTo(ed+d7,ec+ee,ed+d7-ef,ec+ee);d4.lineTo(ed+d8,ec+ee);d4.quadraticCurveTo(ed,ec+ee,ed,ec+ee-d8);d4.lineTo(ed,ec+eg);d4.quadraticCurveTo(ed,ec,ed+eg,ec);if(!aF||cd){d4.translate(-0.5,-0.5)}bk();dc()};bO.prototype.rect=function(d8,ee,eb,d7,d9,ec,ea,ed){if(!eb&&!d7){return}if(bI===1){eb-=d8;d7-=ee}else{if(bI===2){eb*=2;d7*=2;d8-=eb/2;ee-=d7/2}else{if(bI===3){d8-=eb/2;ee-=d7/2}}}d8=o.round(d8);ee=o.round(ee);eb=o.round(eb);d7=o.round(d7);if(d9!==r){bL(d8,ee,eb,d7,d9,ec,ea,ed);return}if(cd&&dS%2===1){d4.translate(0.5,0.5)}d4.beginPath();d4.rect(d8,ee,eb,d7);bk();dc();if(cd&&dS%2===1){d4.translate(-0.5,-0.5)}};by.prototype.rect=function(ef,ee,d7,eh,ej,ec,ei,d8){if(ej!==r){throw"rect() with rounded corners is not supported in 3D mode"}if(bI===1){d7-=ef;eh-=ee}else{if(bI===2){d7*=2;eh*=2;ef-=d7/2;ee-=eh/2}else{if(bI===3){ef-=d7/2;ee-=eh/2}}}var eb=new aM;eb.translate(ef,ee,0);eb.scale(d7,eh,1);eb.transpose();var ed=new aM;ed.scale(1,-1,1);ed.apply(dF.array());ed.transpose();if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,eb.array());a5("view2d",dM,"view",false,ed.array());dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,aA);cf("aTextureCoord2d",dM,"aTextureCoord");d4.drawArrays(d4.LINE_LOOP,0,aj.length/3)}if(aF){d4.useProgram(du);a5("model3d",du,"model",false,eb.array());a5("view3d",du,"view",false,ed.array());d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",bl);if(dH>0){var eg=new aM;eg.set(ed);var d9=new aM;d9.set(eb);eg.mult(d9);var ea=new aM;ea.set(eg);ea.invert();ea.transpose();a5("normalTransform3d",du,"normalTransform",false,ea.array());db("normal3d",du,"Normal",3,b1)}else{cf("normal3d",du,"Normal")}db("vertex3d",du,"Vertex",3,aA);d4.drawArrays(d4.TRIANGLE_FAN,0,aj.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)}};bO.prototype.ellipse=function(ed,ec,d8,ef){ed=ed||0;ec=ec||0;if(d8<=0&&ef<=0){return}if(cM===2){d8*=2;ef*=2}else{if(cM===1){d8=d8-ed;ef=ef-ec;ed+=d8/2;ec+=ef/2}else{if(cM===0){ed+=d8/2;ec+=ef/2}}}if(d8===ef){d4.beginPath();d4.arc(ed,ec,d8/2,0,6.283185307179586,false);bk();dc()}else{var ee=d8/2,eb=ef/2,d7=0.5522847498307933,ea=d7*ee,d9=d7*eb;cV.beginShape();cV.vertex(ed+ee,ec);cV.bezierVertex(ed+ee,ec-d9,ed+ea,ec-eb,ed,ec-eb);cV.bezierVertex(ed-ea,ec-eb,ed-ee,ec-d9,ed-ee,ec);cV.bezierVertex(ed-ee,ec+d9,ed-ea,ec+eb,ed,ec+eb);cV.bezierVertex(ed+ea,ec+eb,ed+ee,ec+d9,ed+ee,ec);cV.endShape()}};by.prototype.ellipse=function(ek,ej,d9,em){ek=ek||0;ej=ej||0;if(d9<=0&&em<=0){return}if(cM===2){d9*=2;em*=2}else{if(cM===1){d9=d9-ek;em=em-ej;ek+=d9/2;ej+=em/2}else{if(cM===0){ek+=d9/2;ej+=em/2}}}var el=d9/2,eg=em/2,d7=0.5522847498307933,eb=d7*el,ea=d7*eg;cV.beginShape();cV.vertex(ek+el,ej);cV.bezierVertex(ek+el,ej-ea,0,ek+eb,ej-eg,0,ek,ej-eg,0);cV.bezierVertex(ek-eb,ej-eg,0,ek-el,ej-ea,0,ek-el,ej,0);cV.bezierVertex(ek-el,ej+ea,0,ek-eb,ej+eg,0,ek,ej+eg,0);cV.bezierVertex(ek+eb,ej+eg,0,ek+el,ej+ea,0,ek+el,ej,0);cV.endShape();if(aF){var ec=0,eh=0,ee,ed;for(ee=0;ee<a7.length;ee++){ec+=a7[ee][0];eh+=a7[ee][1]}ec/=a7.length;eh/=a7.length;var ef=[],d8=[],ei=[];ef[0]=ec;ef[1]=eh;ef[2]=0;ef[3]=0;ef[4]=0;ef[5]=bl[0];ef[6]=bl[1];ef[7]=bl[2];ef[8]=bl[3];ef[9]=cZ[0];ef[10]=cZ[1];ef[11]=cZ[2];ef[12]=cZ[3];ef[13]=a4;ef[14]=a3;ef[15]=a2;a7.unshift(ef);for(ee=0;ee<a7.length;ee++){for(ed=0;ed<3;ed++){d8.push(a7[ee][ed])}for(ed=5;ed<9;ed++){ei.push(a7[ee][ed])}}dk(d8,"TRIANGLE_FAN",ei)}};cV.normal=function(d7,d9,d8){if(arguments.length!==3||!(typeof d7==="number"&&typeof d9==="number"&&typeof d8==="number")){throw"normal() requires three numeric arguments."}a4=d7;a3=d9;a2=d8;if(dN!==0){if(aY===0){aY=1}else{if(aY===1){aY=2}}}};cV.save=function(d8,d7){if(d7!==r){return B.open(d7.toDataURL(),"_blank")}return B.open(cV.externals.canvas.toDataURL(),"_blank")};var cv=0;cV.saveFrame=function(d7){if(d7===r){d7="screen-####.png"}var d8=d7.replace(/#+/,function(ea){var d9=""+cv++;while(d9.length<ea.length){d9="0"+d9}return d9});cV.save(d8)};var cb=d.createElement("canvas").getContext("2d");var V=[r,r,r];function bv(ee,d8,ed){var ea=V.shift();if(ea===r){ea={};ea.canvas=d.createElement("canvas");ea.context=ea.canvas.getContext("2d")}V.push(ea);var d9=ea.canvas,eb=ea.context,ec=d8||ee.width,d7=ed||ee.height;d9.width=ec;d9.height=d7;if(!ee){eb.clearRect(0,0,ec,d7)}else{if("data" in ee){eb.putImageData(ee,0,0)}else{eb.clearRect(0,0,ec,d7);eb.drawImage(ee,0,0,ec,d7)}}return ea}function bZ(d7){return{getLength:function(d8){return function(){if(d8.isRemote){throw"Image is loaded remotely. Cannot get length."}else{return d8.imageData.data.length?d8.imageData.data.length/4:0}}}(d7),getPixel:function(d8){return function(d9){var eb=d9*4,ea=d8.imageData.data;if(d8.isRemote){throw"Image is loaded remotely. Cannot get pixels."}return(ea[eb+3]&255)<<24|(ea[eb]&255)<<16|(ea[eb+1]&255)<<8|ea[eb+2]&255}}(d7),setPixel:function(d8){return function(d9,ec){var eb=d9*4,ea=d8.imageData.data;if(d8.isRemote){throw"Image is loaded remotely. Cannot set pixel."}ea[eb+0]=(ec>>16)&255;ea[eb+1]=(ec>>8)&255;ea[eb+2]=ec&255;ea[eb+3]=(ec>>24)&255;d8.__isDirty=true}}(d7),toArray:function(d8){return function(){var d9=[],ec=d8.imageData.data,eb=d8.width*d8.height;if(d8.isRemote){throw"Image is loaded remotely. Cannot get pixels."}for(var ea=0,ed=0;ea<eb;ea++,ed+=4){d9.push((ec[ed+3]&255)<<24|(ec[ed]&255)<<16|(ec[ed+1]&255)<<8|ec[ed+2]&255)}return d9}}(d7),set:function(d8){return function(d9){var ed,ec,ee;if(this.isRemote){throw"Image is loaded remotely. Cannot set pixels."}ec=d8.imageData.data;for(var ea=0,eb=d9.length;ea<eb;ea++){ee=d9[ea];ed=ea*4;ec[ed+0]=(ee>>16)&255;ec[ed+1]=(ee>>8)&255;ec[ed+2]=ee&255;ec[ed+3]=(ee>>24)&255}d8.__isDirty=true}}(d7)}}var cF=function(ea,ed,eb){this.__isDirty=false;if(ea instanceof HTMLImageElement){this.fromHTMLImageData(ea)}else{if(ed||eb){this.width=ea||1;this.height=ed||1;var d8=this.sourceImg=d.createElement("canvas");d8.width=this.width;d8.height=this.height;var ee=this.imageData=d8.getContext("2d").createImageData(this.width,this.height);this.format=eb===2||eb===4?eb:1;if(this.format===1){for(var d9=3,ec=this.imageData.data,d7=ec.length;d9<d7;d9+=4){ec[d9]=255}}this.__isDirty=true;this.updatePixels()}else{this.width=0;this.height=0;this.imageData=cb.createImageData(1,1);this.format=2}}this.pixels=bZ(this)};cF.prototype={__isPImage:true,updatePixels:function(){var d7=this.sourceImg;if(d7&&d7 instanceof HTMLCanvasElement&&this.__isDirty){d7.getContext("2d").putImageData(this.imageData,0,0)}this.__isDirty=false},fromHTMLImageData:function(d7){var d8=bv(d7);try{var ea=d8.context.getImageData(0,0,d7.width,d7.height);this.fromImageData(ea)}catch(d9){if(d7.width&&d7.height){this.isRemote=true;this.width=d7.width;this.height=d7.height}}this.sourceImg=d7},get:function(d7,ea,d8,d9){if(!arguments.length){return cV.get(this)}if(arguments.length===2){return cV.get(d7,ea,this)}if(arguments.length===4){return cV.get(d7,ea,d8,d9,this)}},set:function(d7,d9,d8){cV.set(d7,d9,d8,this);this.__isDirty=true},blend:function(ef,eb,ea,d8,ed,eg,ee,ec,d7,d9){if(arguments.length===9){cV.blend(this,ef,eb,ea,d8,ed,eg,ee,ec,d7,this)}else{if(arguments.length===10){cV.blend(ef,eb,ea,d8,ed,eg,ee,ec,d7,d9,this)}}delete this.sourceImg},copy:function(ee,eb,ea,d9,d8,ef,ed,ec,d7){if(arguments.length===8){cV.blend(this,ee,eb,ea,d9,d8,ef,ed,ec,0,this)}else{if(arguments.length===9){cV.blend(ee,eb,ea,d9,d8,ef,ed,ec,d7,0,this)}}delete this.sourceImg},filter:function(d8,d7){if(arguments.length===2){cV.filter(d8,d7,this)}else{if(arguments.length===1){cV.filter(d8,null,this)}}delete this.sourceImg},save:function(d7){cV.save(d7,this)},resize:function(d7,d9){if(this.isRemote){throw"Image is loaded remotely. Cannot resize."}if(this.width!==0||this.height!==0){if(d7===0&&d9!==0){d7=o.floor(this.width/this.height*d9)}else{if(d9===0&&d7!==0){d9=o.floor(this.height/this.width*d7)}}var d8=bv(this.imageData).canvas;var ea=bv(d8,d7,d9).context.getImageData(0,0,d7,d9);this.fromImageData(ea)}},mask:function(d7){var ea=this.toImageData(),d9,d8;if(d7 instanceof cF||d7.__isPImage){if(d7.width===this.width&&d7.height===this.height){d7=d7.toImageData();for(d9=2,d8=this.width*this.height*4;d9<d8;d9+=4){ea.data[d9+1]=d7.data[d9]}}else{throw"mask must have the same dimensions as PImage."}}else{if(d7 instanceof Array){if(this.width*this.height===d7.length){for(d9=0,d8=d7.length;d9<d8;++d9){ea.data[d9*4+3]=d7[d9]}}else{throw"mask array must be the same length as PImage pixels array."}}}this.fromImageData(ea)},loadPixels:E,toImageData:function(){if(this.isRemote){return this.sourceImg}if(!this.__isDirty){return this.imageData}var d7=bv(this.imageData);return d7.context.getImageData(0,0,this.width,this.height)},toDataURL:function(){if(this.isRemote){throw"Image is loaded remotely. Cannot create dataURI."}var d7=bv(this.imageData);return d7.canvas.toDataURL()},fromImageData:function(eb){var d8=eb.width,ea=eb.height,d9=d.createElement("canvas"),d7=d9.getContext("2d");this.width=d9.width=d8;this.height=d9.height=ea;d7.putImageData(eb,0,0);this.format=2;this.imageData=eb;this.sourceImg=d9}};cV.PImage=cF;cV.createImage=function(d7,d8,d9){return new cF(d7,d8,d9)};cV.loadImage=function(d8,d9,eb){if(d9){d8=d8+"."+d9}var ea;if(cP.imageCache.images[d8]){ea=new cF(cP.imageCache.images[d8]);ea.loaded=true;return ea}ea=new cF;var d7=d.createElement("img");ea.sourceImg=d7;d7.onload=function(ef,ed,ec){var eg=ef;var ee=ed;var eh=ec;return function(){ee.fromHTMLImageData(eg);ee.loaded=true;if(eh){eh()}}}(d7,ea,eb);d7.src=d8;return ea};cV.requestImage=cV.loadImage;function c8(d7,ea){var d8;if(d7>=cV.width||d7<0||ea<0||ea>=cV.height){return 0}if(dR){var d9=((0|d7)+cV.width*(0|ea))*4;d8=cV.imageData.data;return(d8[d9+3]&255)<<24|(d8[d9]&255)<<16|(d8[d9+1]&255)<<8|d8[d9+2]&255}d8=cV.toImageData(0|d7,0|ea,1,1).data;return(d8[3]&255)<<24|(d8[0]&255)<<16|(d8[1]&255)<<8|d8[2]&255}function c7(d7,eb,d8){if(d8.isRemote){throw"Image is loaded remotely. Cannot get x,y."}var ea=eb*d8.width*4+d7*4,d9=d8.imageData.data;return(d9[ea+3]&255)<<24|(d9[ea]&255)<<16|(d9[ea+1]&255)<<8|d9[ea+2]&255}function c5(d7,eb,d8,d9){var ea=new cF(d8,d9,2);ea.fromImageData(cV.toImageData(d7,eb,d8,d9));return ea}function c4(ec,eb,ed,ei,eo){if(eo.isRemote){throw"Image is loaded remotely. Cannot get x,y,w,h."}var em=new cF(ed,ei,2),d9=em.imageData.data,ea=eo.width,ej=eo.height,el=eo.imageData.data;var d7=o.max(0,-eb),d8=o.max(0,-ec),ee=o.min(ei,ej-eb),ef=o.min(ed,ea-ec);for(var eh=d7;eh<ee;++eh){var ek=((eb+eh)*ea+(ec+d8))*4;var en=(eh*ed+d8)*4;for(var eg=d8;eg<ef;++eg){d9[en++]=el[ek++];d9[en++]=el[ek++];d9[en++]=el[ek++];d9[en++]=el[ek++]}}em.__isDirty=true;return em}cV.get=function(d7,eb,d8,ea,d9){if(d9!==undefined){return c4(d7,eb,d8,ea,d9)}if(ea!==undefined){return c5(d7,eb,d8,ea)}if(d8!==undefined){return c7(d7,eb,d8)}if(eb!==undefined){return c8(d7,eb)}if(d7!==undefined){return c4(0,0,d7.width,d7.height,d7)}return c5(0,0,cV.width,cV.height)};cV.createGraphics=function(d7,d9,d8){var ea=new D;ea.size(d7,d9,d8);return ea};function R(){if(dR){d4=ai;dR=false;cV.updatePixels()}}function cp(){function d8(ec,ea){function eb(){R();d4[ea].apply(d4,arguments)}ec[ea]=eb}function d7(ed,eb){function ea(){R();return d4[eb]}function ec(ee){R();d4[eb]=ee}cV.defineProperty(ed,eb,{get:ea,set:ec})}for(var d9 in d4){if(typeof d4[d9]==="function"){d8(this,d9)}else{d7(this,d9)}}}function cB(){if(dR){return}cV.loadPixels();if(cm===null){ai=d4;cm=new cp}dR=true;d4=cm;dZ=0}function bu(d7,d9,d8){if(d7<cV.width&&d7>=0&&d9>=0&&d9<cV.height){cB();cV.pixels.setPixel((0|d7)+cV.width*(0|d9),d8);if(++dZ>bY){R()}}}function bs(d7,ed,ea,d8){if(d8.isRemote){throw"Image is loaded remotely. Cannot set x,y."}var ec=cV.color.toArray(ea);var eb=ed*d8.width*4+d7*4;var d9=d8.imageData.data;d9[eb]=ec[0];d9[eb+1]=ec[1];d9[eb+2]=ec[2];d9[eb+3]=ec[3]}cV.set=function(d7,ec,ea,d9){var d8,eb;if(arguments.length===3){if(typeof ea==="number"){bu(d7,ec,ea)}else{if(ea instanceof cF||ea.__isPImage){cV.image(ea,d7,ec)}}}else{if(arguments.length===4){bs(d7,ec,ea,d9)}}};cV.imageData={};cV.pixels={getLength:function(){return cV.imageData.data.length?cV.imageData.data.length/4:0},getPixel:function(d7){var d9=d7*4,d8=cV.imageData.data;return d8[d9+3]<<24&4278190080|d8[d9+0]<<16&16711680|d8[d9+1]<<8&65280|d8[d9+2]&255},setPixel:function(d7,ea){var d9=d7*4,d8=cV.imageData.data;d8[d9+0]=(ea&16711680)>>>16;d8[d9+1]=(ea&65280)>>>8;d8[d9+2]=ea&255;d8[d9+3]=(ea&4278190080)>>>24},toArray:function(){var d7=[],d9=cV.imageData.width*cV.imageData.height,ea=cV.imageData.data;for(var d8=0,eb=0;d8<d9;d8++,eb+=4){d7.push(ea[eb+3]<<24&4278190080|ea[eb+0]<<16&16711680|ea[eb+1]<<8&65280|ea[eb+2]&255)}return d7},set:function(d7){for(var d8=0,d9=d7.length;d8<d9;d8++){this.setPixel(d8,d7[d8])}}};cV.loadPixels=function(){cV.imageData=dU.$ensureContext().getImageData(0,0,cV.width,cV.height)};cV.updatePixels=function(){if(cV.imageData){dU.$ensureContext().putImageData(cV.imageData,0,0)}};cV.hint=function(d8){var d7=dU.$ensureContext();if(d8===4){d7.disable(d7.DEPTH_TEST);d7.depthMask(false);d7.clear(d7.DEPTH_BUFFER_BIT)}else{if(d8===-4){d7.enable(d7.DEPTH_TEST);d7.depthMask(true)}}};var bB=function(ea,d9,d8,d7){var eb;if(ea instanceof cF||ea.__isPImage){eb=ea;if(!eb.loaded){throw"Error using image in background(): PImage not loaded."}if(eb.width!==cV.width||eb.height!==cV.height){throw"Background image must be the same dimensions as the canvas."}}else{eb=cV.color(ea,d9,d8,d7)}a0=eb};bO.prototype.background=function(ea,d9,d8,d7){if(ea!==r){bB(ea,d9,d8,d7)}if(a0 instanceof cF||a0.__isPImage){aC();d4.setTransform(1,0,0,1,0,0);cV.image(a0,0,0);cO()}else{aC();d4.setTransform(1,0,0,1,0,0);if(cV.alpha(a0)!==bR){d4.clearRect(0,0,cV.width,cV.height)}d4.fillStyle=cV.color.toString(a0);d4.fillRect(0,0,cV.width,cV.height);ap=true;cO()}};by.prototype.background=function(ea,d9,d8,d7){if(arguments.length>0){bB(ea,d9,d8,d7)}var eb=cV.color.toGLArray(a0);d4.clearColor(eb[0],eb[1],eb[2],eb[3]);d4.clear(d4.COLOR_BUFFER_BIT|d4.DEPTH_BUFFER_BIT)};bO.prototype.image=function(ea,ef,ed,eg,eb){ef=o.round(ef);ed=o.round(ed);if(ea.width>0){var eh=eg||ea.width;var ee=eb||ea.height;var d7=bh(ef||0,ed||0,eg||ea.width,eb||ea.height,arguments.length<4);var ec=!!ea.sourceImg&&bb===null;if(ec){var d8=ea.sourceImg;if(ea.__isDirty){ea.updatePixels()}d4.drawImage(d8,0,0,d8.width,d8.height,d7.x,d7.y,d7.w,d7.h)}else{var d9=ea.toImageData();if(bb!==null){bb(d9);ea.__isDirty=true}d4.drawImage(bv(d9).canvas,0,0,ea.width,ea.height,d7.x,d7.y,d7.w,d7.h)}}};by.prototype.image=function(d9,d7,eb,d8,ea){if(d9.width>0){d7=o.round(d7);eb=o.round(eb);d8=d8||d9.width;ea=ea||d9.height;cV.beginShape(cV.QUADS);cV.texture(d9);cV.vertex(d7,eb,0,0,0);cV.vertex(d7,eb+ea,0,0,ea);cV.vertex(d7+d8,eb+ea,0,d8,ea);cV.vertex(d7+d8,eb,0,d8,0);cV.endShape()}};cV.tint=function(ea,d9,d7,ef){var ec=cV.color(ea,d9,d7,ef);var d8=cV.red(ec)/bG;var eb=cV.green(ec)/bF;var ed=cV.blue(ec)/bD;var ee=cV.alpha(ec)/bR;bb=function(ej){var ei=ej.data,eh=4*ej.width*ej.height;for(var eg=0;eg<eh;){ei[eg++]*=d8;ei[eg++]*=eb;ei[eg++]*=ed;ei[eg++]*=ee}};bt=function(eh){for(var eg=0;eg<eh.length;){eh[eg++]=d8;eh[eg++]=eb;eh[eg++]=ed;eh[eg++]=ee}}};cV.noTint=function(){bb=null;bt=null};cV.copy=function(d7,ec,eb,ed,d9,ef,ee,d8,ea){if(ea===r){ea=d8;d8=ee;ee=ef;ef=d9;d9=ed;ed=eb;eb=ec;ec=d7;d7=cV}cV.blend(d7,ec,eb,ed,d9,ef,ee,d8,ea,0)};cV.blend=function(d7,eh,eg,ek,ec,em,el,d8,ee,ed,ea){if(d7.isRemote){throw"Image is loaded remotely. Cannot blend image."}if(ed===r){ed=ee;ee=d8;d8=el;el=em;em=ec;ec=ek;ek=eg;eg=eh;eh=d7;d7=cV}var d9=eh+ek,ef=eg+ec,ej=em+d8,eb=el+ee,ei=ea||cV;if(ea===r||ed===r){cV.loadPixels()}d7.loadPixels();if(d7===cV&&cV.intersect(eh,eg,d9,ef,em,el,ej,eb)){cV.blit_resize(cV.get(eh,eg,d9-eh,ef-eg),0,0,d9-eh-1,ef-eg-1,ei.imageData.data,ei.width,ei.height,em,el,ej,eb,ed)}else{cV.blit_resize(d7,eh,eg,d9,ef,ei.imageData.data,ei.width,ei.height,em,el,ej,eb,ed)}if(ea===r){cV.updatePixels()}};var bm=function(eb){var d7=cV.floor(eb*3.5),d9,d8;d7=d7<1?1:d7<248?d7:248;if(cV.shared.blurRadius!==d7){cV.shared.blurRadius=d7;cV.shared.blurKernelSize=1+(cV.shared.blurRadius<<1);cV.shared.blurKernel=new e(cV.shared.blurKernelSize);var ed=cV.shared.blurKernel;var ec=cV.shared.blurKernelSize;var ea=cV.shared.blurRadius;for(d9=0;d9<ec;d9++){ed[d9]=0}var ee=(d7-1)*(d7-1);for(d9=1;d9<d7;d9++){ed[d7+d9]=ed[d8]=ee}ed[d7]=d7*d7}};var b6=function(el,eq){var d9,ec,ei,en,eo,ex,ep;var es,ek,ew,ev,em;var ef=eq.pixels.getLength();var er=new e(ef);var eA=new e(ef);var ee=new e(ef);var ez=new e(ef);var ey=0;var eh,eg,eu,eb;bm(el);var d8=eq.height;var d7=eq.width;var et=cV.shared.blurKernelSize;var ej=cV.shared.blurRadius;var ed=cV.shared.blurKernel;var ea=eq.imageData.data;for(eg=0;eg<d8;eg++){for(eh=0;eh<d7;eh++){en=ei=ec=eo=d9=0;es=eh-ej;if(es<0){em=-es;es=0}else{if(es>=d7){break}em=0}for(eu=em;eu<et;eu++){if(es>=d7){break}eb=(es+ey)*4;ep=ed[eu];eo+=ep*ea[eb+3];ec+=ep*ea[eb];ei+=ep*ea[eb+1];en+=ep*ea[eb+2];d9+=ep;es++}ek=ey+eh;ez[ek]=eo/d9;er[ek]=ec/d9;eA[ek]=ei/d9;ee[ek]=en/d9}ey+=d7}ey=0;ew=-ej;ev=ew*d7;for(eg=0;eg<d8;eg++){for(eh=0;eh<d7;eh++){en=ei=ec=eo=d9=0;if(ew<0){em=ek=-ew;es=eh}else{if(ew>=d8){break}em=0;ek=ew;es=eh+ev}for(eu=em;eu<et;eu++){if(ek>=d8){break}ep=ed[eu];eo+=ep*ez[es];ec+=ep*er[es];ei+=ep*eA[es];en+=ep*ee[es];d9+=ep;ek++;es+=d7}eb=(eh+ey)*4;ea[eb]=ec/d9;ea[eb+1]=ei/d9;ea[eb+2]=en/d9;ea[eb+3]=eo/d9}ey+=d7;ev+=d7;ew++}};var ce=function(eo,ei){var ee=0;var es=ei.pixels.getLength();var ej=new I(es);var em,d8,eh,eg,ea;var en,eb,ed,ef,d9,ek,er,d7,ep,ec,eq,el;if(!eo){while(ee<es){em=ee;d8=ee+ei.width;while(ee<d8){eh=eg=ei.pixels.getPixel(ee);eb=ee-1;en=ee+1;ed=ee-ei.width;ef=ee+ei.width;if(eb<em){eb=ee}if(en>=d8){en=ee}if(ed<0){ed=0}if(ef>=es){ef=ee}er=ei.pixels.getPixel(ed);ek=ei.pixels.getPixel(eb);d7=ei.pixels.getPixel(ef);d9=ei.pixels.getPixel(en);ea=77*(eh>>16&255)+151*(eh>>8&255)+28*(eh&255);ec=77*(ek>>16&255)+151*(ek>>8&255)+28*(ek&255);ep=77*(d9>>16&255)+151*(d9>>8&255)+28*(d9&255);eq=77*(er>>16&255)+151*(er>>8&255)+28*(er&255);el=77*(d7>>16&255)+151*(d7>>8&255)+28*(d7&255);if(ec>ea){eg=ek;ea=ec}if(ep>ea){eg=d9;ea=ep}if(eq>ea){eg=er;ea=eq}if(el>ea){eg=d7;ea=el}ej[ee++]=eg}}}else{while(ee<es){em=ee;d8=ee+ei.width;while(ee<d8){eh=eg=ei.pixels.getPixel(ee);eb=ee-1;en=ee+1;ed=ee-ei.width;ef=ee+ei.width;if(eb<em){eb=ee}if(en>=d8){en=ee}if(ed<0){ed=0}if(ef>=es){ef=ee}er=ei.pixels.getPixel(ed);ek=ei.pixels.getPixel(eb);d7=ei.pixels.getPixel(ef);d9=ei.pixels.getPixel(en);ea=77*(eh>>16&255)+151*(eh>>8&255)+28*(eh&255);ec=77*(ek>>16&255)+151*(ek>>8&255)+28*(ek&255);ep=77*(d9>>16&255)+151*(d9>>8&255)+28*(d9&255);eq=77*(er>>16&255)+151*(er>>8&255)+28*(er&255);el=77*(d7>>16&255)+151*(d7>>8&255)+28*(d7&255);if(ec<ea){eg=ek;ea=ec}if(ep<ea){eg=d9;ea=ep}if(eq<ea){eg=er;ea=eq}if(el<ea){eg=d7;ea=el}ej[ee++]=eg}}}ei.pixels.set(ej)};cV.filter=function(ee,ed,ea){var eh,ec,d8,eg;if(arguments.length===3){ea.loadPixels();eh=ea}else{cV.loadPixels();eh=cV}if(ed===r){ed=null}if(eh.isRemote){throw"Image is loaded remotely. Cannot filter image."}var ei=eh.pixels.getLength();switch(ee){case 11:var ej=ed||1;b6(ej,eh);break;case 12:if(eh.format===4){for(eg=0;eg<ei;eg++){ec=255-eh.pixels.getPixel(eg);eh.pixels.setPixel(eg,4278190080|ec<<16|ec<<8|ec)}eh.format=1}else{for(eg=0;eg<ei;eg++){ec=eh.pixels.getPixel(eg);d8=77*(ec>>16&255)+151*(ec>>8&255)+28*(ec&255)>>8;eh.pixels.setPixel(eg,ec&4278190080|d8<<16|d8<<8|d8)}}break;case 13:for(eg=0;eg<ei;eg++){eh.pixels.setPixel(eg,eh.pixels.getPixel(eg)^16777215)}break;case 15:if(ed===null){throw"Use filter(POSTERIZE, int levels) instead of filter(POSTERIZE)"}var em=cV.floor(ed);if(em<2||em>255){throw"Levels must be between 2 and 255 for filter(POSTERIZE, levels)"}var ef=em-1;for(eg=0;eg<ei;eg++){var d7=eh.pixels.getPixel(eg)>>16&255;var ek=eh.pixels.getPixel(eg)>>8&255;var d9=eh.pixels.getPixel(eg)&255;d7=(d7*em>>8)*255/ef;ek=(ek*em>>8)*255/ef;d9=(d9*em>>8)*255/ef;eh.pixels.setPixel(eg,4278190080&eh.pixels.getPixel(eg)|d7<<16|ek<<8|d9)}break;case 14:for(eg=0;eg<ei;eg++){eh.pixels.setPixel(eg,eh.pixels.getPixel(eg)|4278190080)}eh.format=1;break;case 16:if(ed===null){ed=0.5}if(ed<0||ed>1){throw"Level must be between 0 and 1 for filter(THRESHOLD, level)"}var eb=cV.floor(ed*255);for(eg=0;eg<ei;eg++){var el=cV.max((eh.pixels.getPixel(eg)&16711680)>>16,cV.max((eh.pixels.getPixel(eg)&65280)>>8,eh.pixels.getPixel(eg)&255));eh.pixels.setPixel(eg,eh.pixels.getPixel(eg)&4278190080|(el<eb?0:16777215))}break;case 17:ce(true,eh);break;case 18:ce(false,eh);break}eh.updatePixels()};cV.shared={fracU:0,ifU:0,fracV:0,ifV:0,u1:0,u2:0,v1:0,v2:0,sX:0,sY:0,iw:0,iw1:0,ih1:0,ul:0,ll:0,ur:0,lr:0,cUL:0,cLL:0,cUR:0,cLR:0,srcXOffset:0,srcYOffset:0,r:0,g:0,b:0,a:0,srcBuffer:null,blurRadius:0,blurKernelSize:0,blurKernel:null};cV.intersect=function(d9,eg,d8,ef,ek,ed,ej,ec){var ei=d8-d9+1;var eb=ef-eg+1;var d7=ej-ek+1;var ee=ec-ed+1;if(ek<d9){d7+=ek-d9;if(d7>ei){d7=ei}}else{var eh=ei+d9-ek;if(d7>eh){d7=eh}}if(ed<eg){ee+=ed-eg;if(ee>eb){ee=eb}}else{var ea=eb+eg-ed;if(ee>ea){ee=ea}}return !(d7<=0||ee<=0)};var dO={};dO[1]=cV.modes.blend;dO[2]=cV.modes.add;dO[4]=cV.modes.subtract;dO[8]=cV.modes.lightest;dO[16]=cV.modes.darkest;dO[0]=cV.modes.replace;dO[32]=cV.modes.difference;dO[64]=cV.modes.exclusion;dO[128]=cV.modes.multiply;dO[256]=cV.modes.screen;dO[512]=cV.modes.overlay;dO[1024]=cV.modes.hard_light;dO[2048]=cV.modes.soft_light;dO[4096]=cV.modes.dodge;dO[8192]=cV.modes.burn;cV.blit_resize=function(ek,ew,eq,ev,ep,eB,eg,eo,eu,el,et,ej,em){var ez,ey;if(ew<0){ew=0}if(eq<0){eq=0}if(ev>=ek.width){ev=ek.width-1}if(ep>=ek.height){ep=ek.height-1}var eF=ev-ew;var eK=ep-eq;var d7=et-eu;var eh=ej-el;if(d7<=0||eh<=0||eF<=0||eK<=0||eu>=eg||el>=eo||ew>=ek.width||eq>=ek.height){return}var ee=o.floor(eF/d7*32768);var eb=o.floor(eK/eh*32768);var eD=cV.shared;eD.srcXOffset=o.floor(eu<0?-eu*ee:ew*32768);eD.srcYOffset=o.floor(el<0?-el*eb:eq*32768);if(eu<0){d7+=eu;eu=0}if(el<0){eh+=el;el=0}d7=o.min(d7,eg-eu);eh=o.min(eh,eo-el);var er=el*eg+eu;var eN;eD.srcBuffer=ek.imageData.data;eD.iw=ek.width;eD.iw1=ek.width-1;eD.ih1=ek.height-1;var es=cV.filter_bilinear,eH=cV.filter_new_scanline,ef=dO[em],eE,eJ,eC,eG,d9,ea,d8=4278190080,eI=16711680,ex=65280,ed=255,eM=32767,eA=15,ei=1,en=9,ec=eD.srcBuffer,eL=o.min;for(ey=0;ey<eh;ey++){eD.sX=eD.srcXOffset;eD.fracV=eD.srcYOffset&eM;eD.ifV=eM-eD.fracV;eD.v1=(eD.srcYOffset>>eA)*eD.iw;eD.v2=eL((eD.srcYOffset>>eA)+1,eD.ih1)*eD.iw;for(ez=0;ez<d7;ez++){eJ=(er+ez)*4;eN=eB[eJ+3]<<24&d8|eB[eJ]<<16&eI|eB[eJ+1]<<8&ex|eB[eJ+2]&ed;eD.fracU=eD.sX&eM;eD.ifU=eM-eD.fracU;eD.ul=eD.ifU*eD.ifV>>eA;eD.ll=eD.ifU*eD.fracV>>eA;eD.ur=eD.fracU*eD.ifV>>eA;eD.lr=eD.fracU*eD.fracV>>eA;eD.u1=eD.sX>>eA;eD.u2=eL(eD.u1+1,eD.iw1);eC=(eD.v1+eD.u1)*4;eG=(eD.v1+eD.u2)*4;d9=(eD.v2+eD.u1)*4;ea=(eD.v2+eD.u2)*4;eD.cUL=ec[eC+3]<<24&d8|ec[eC]<<16&eI|ec[eC+1]<<8&ex|ec[eC+2]&ed;eD.cUR=ec[eG+3]<<24&d8|ec[eG]<<16&eI|ec[eG+1]<<8&ex|ec[eG+2]&ed;eD.cLL=ec[d9+3]<<24&d8|ec[d9]<<16&eI|ec[d9+1]<<8&ex|ec[d9+2]&ed;eD.cLR=ec[ea+3]<<24&d8|ec[ea]<<16&eI|ec[ea+1]<<8&ex|ec[ea+2]&ed;eD.r=eD.ul*((eD.cUL&eI)>>16)+eD.ll*((eD.cLL&eI)>>16)+eD.ur*((eD.cUR&eI)>>16)+eD.lr*((eD.cLR&eI)>>16)<<ei&eI;eD.g=eD.ul*(eD.cUL&ex)+eD.ll*(eD.cLL&ex)+eD.ur*(eD.cUR&ex)+eD.lr*(eD.cLR&ex)>>>eA&ex;eD.b=eD.ul*(eD.cUL&ed)+eD.ll*(eD.cLL&ed)+eD.ur*(eD.cUR&ed)+eD.lr*(eD.cLR&ed)>>>eA;eD.a=eD.ul*((eD.cUL&d8)>>>24)+eD.ll*((eD.cLL&d8)>>>24)+eD.ur*((eD.cUR&d8)>>>24)+eD.lr*((eD.cLR&d8)>>>24)<<en&d8;eE=ef(eN,eD.a|eD.r|eD.g|eD.b);eB[eJ]=(eE&eI)>>>16;eB[eJ+1]=(eE&ex)>>>8;eB[eJ+2]=eE&ed;eB[eJ+3]=(eE&d8)>>>24;eD.sX+=ee}er+=eg;eD.srcYOffset+=eb}};cV.loadFont=function(d8,d9){if(d8===r){throw"font 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diff --git a/pelita/ipython/index.html b/pelita/ipython/index.html
new file mode 100644
index 000000000..e69de29bb

From aa4dc63df6b044a00275d2cadd916d86adecaf5d Mon Sep 17 00:00:00 2001
From: Rike-Benjamin Schuppner <rikebs@debilski.de>
Date: Fri, 22 May 2015 13:41:20 +0200
Subject: [PATCH 2/5] BLD: Do not ship processing.

---
 pelita/ipython/_static/processing-1.3.6.min.js | 13 -------------
 1 file changed, 13 deletions(-)
 delete mode 100644 pelita/ipython/_static/processing-1.3.6.min.js

diff --git a/pelita/ipython/_static/processing-1.3.6.min.js b/pelita/ipython/_static/processing-1.3.6.min.js
deleted file mode 100644
index fc5e794e4..000000000
--- a/pelita/ipython/_static/processing-1.3.6.min.js
+++ /dev/null
@@ -1,13 +0,0 @@
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-
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-    For a list of copyright holders, please refer to AUTHORS.
-
-    http://processingjs.org
-
-***/
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d9,d8;cV.beginShape(this.kind);if(this.style){for(d9=0,d8=this.vertices.length;d9<d8;d9++){cV.vertex(this.vertices[d9])}}else{for(d9=0,d8=this.vertices.length;d9<d8;d9++){var d7=this.vertices[d9];if(d7[2]===0){cV.vertex(d7[0],d7[1])}else{cV.vertex(d7[0],d7[1],d7[2])}}}cV.endShape()},drawGroup:function(){for(var d8=0,d7=this.children.length;d8<d7;d8++){this.children[d8].draw()}},drawPrimitive:function(){if(this.kind===2){cV.point(this.params[0],this.params[1])}else{if(this.kind===4){if(this.params.length===4){cV.line(this.params[0],this.params[1],this.params[2],this.params[3])}else{cV.line(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5])}}else{if(this.kind===8){cV.triangle(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5])}else{if(this.kind===16){cV.quad(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5],this.params[6],this.params[7])}else{if(this.kind===30){if(this.image!==null){cV.imageMode(0);cV.image(this.image,this.params[0],this.params[1],this.params[2],this.params[3])}else{cV.rectMode(0);cV.rect(this.params[0],this.params[1],this.params[2],this.params[3])}}else{if(this.kind===31){cV.ellipseMode(0);cV.ellipse(this.params[0],this.params[1],this.params[2],this.params[3])}else{if(this.kind===32){cV.ellipseMode(0);cV.arc(this.params[0],this.params[1],this.params[2],this.params[3],this.params[4],this.params[5])}else{if(this.kind===41){if(this.params.length===1){cV.box(this.params[0])}else{cV.box(this.params[0],this.params[1],this.params[2])}}else{if(this.kind===40){cV.sphere(this.params[0])}}}}}}}}}},pre:function(){if(this.matrix){cV.pushMatrix();d4.transform(this.matrix.elements[0],this.matrix.elements[3],this.matrix.elements[1],this.matrix.elements[4],this.matrix.elements[2],this.matrix.elements[5])}if(this.style){cV.pushStyle();this.styles()}},post:function(){if(this.matrix){cV.popMatrix()}if(this.style){cV.popStyle()}},styles:function(){if(this.stroke){cV.stroke(this.strokeColor);cV.strokeWeight(this.strokeWeight);cV.strokeCap(this.strokeCap);cV.strokeJoin(this.strokeJoin)}else{cV.noStroke()}if(this.fill){cV.fill(this.fillColor)}else{cV.noFill()}},getChild:function(ea){var d8,d7;if(typeof ea==="number"){return this.children[ea]}var d9;if(ea===""||this.name===ea){return this}if(this.nameTable.length>0){for(d8=0,d7=this.nameTable.length;d8<d7||d9;d8++){if(this.nameTable[d8].getName===ea){d9=this.nameTable[d8];break}}if(d9){return d9}}for(d8=0,d7=this.children.length;d8<d7;d8++){d9=this.children[d8].getChild(ea);if(d9){return d9}}return null},getChildCount:function(){return this.children.length},addChild:function(d7){this.children.push(d7);d7.parent=this;if(d7.getName()!==null){this.addName(d7.getName(),d7)}},addName:function(d8,d7){if(this.parent!==null){this.parent.addName(d8,d7)}else{this.nameTable.push([d8,d7])}},translate:function(){if(arguments.length===2){this.checkMatrix(2);this.matrix.translate(arguments[0],arguments[1])}else{this.checkMatrix(3);this.matrix.translate(arguments[0],arguments[1],0)}},checkMatrix:function(d7){if(this.matrix===null){if(d7===2){this.matrix=new cV.PMatrix2D}else{this.matrix=new cV.PMatrix3D}}else{if(d7===3&&this.matrix instanceof cV.PMatrix2D){this.matrix=new cV.PMatrix3D}}},rotateX:function(d7){this.rotate(d7,1,0,0)},rotateY:function(d7){this.rotate(d7,0,1,0)},rotateZ:function(d7){this.rotate(d7,0,0,1)},rotate:function(){if(arguments.length===1){this.checkMatrix(2);this.matrix.rotate(arguments[0])}else{this.checkMatrix(3);this.matrix.rotate(arguments[0],arguments[1],arguments[2],arguments[3])}},scale:function(){if(arguments.length===2){this.checkMatrix(2);this.matrix.scale(arguments[0],arguments[1])}else{if(arguments.length===3){this.checkMatrix(2);this.matrix.scale(arguments[0],arguments[1],arguments[2])}else{this.checkMatrix(2);this.matrix.scale(arguments[0])}}},resetMatrix:function(){this.checkMatrix(2);this.matrix.reset()},applyMatrix:function(d7){if(arguments.length===1){this.applyMatrix(d7.elements[0],d7.elements[1],0,d7.elements[2],d7.elements[3],d7.elements[4],0,d7.elements[5],0,0,1,0,0,0,0,1)}else{if(arguments.length===6){this.checkMatrix(2);this.matrix.apply(arguments[0],arguments[1],arguments[2],0,arguments[3],arguments[4],arguments[5],0,0,0,1,0,0,0,0,1)}else{if(arguments.length===16){this.checkMatrix(3);this.matrix.apply(arguments[0],arguments[1],arguments[2],arguments[3],arguments[4],arguments[5],arguments[6],arguments[7],arguments[8],arguments[9],arguments[10],arguments[11],arguments[12],arguments[13],arguments[14],arguments[15])}}}}};var cq=cV.PShapeSVG=function(){cV.PShape.call(this);if(arguments.length===1){this.element=arguments[0];this.vertexCodes=[];this.vertices=[];this.opacity=1;this.stroke=false;this.strokeColor=4278190080;this.strokeWeight=1;this.strokeCap="butt";this.strokeJoin="miter";this.strokeGradient=null;this.strokeGradientPaint=null;this.strokeName=null;this.strokeOpacity=1;this.fill=true;this.fillColor=4278190080;this.fillGradient=null;this.fillGradientPaint=null;this.fillName=null;this.fillOpacity=1;if(this.element.getName()!=="svg"){throw"root is not <svg>, it's <"+this.element.getName()+">"}}else{if(arguments.length===2){if(typeof arguments[1]==="string"){if(arguments[1].indexOf(".svg")>-1){this.element=new cV.XMLElement(null,arguments[1]);this.vertexCodes=[];this.vertices=[];this.opacity=1;this.stroke=false;this.strokeColor=4278190080;this.strokeWeight=1;this.strokeCap="butt";this.strokeJoin="miter";this.strokeGradient="";this.strokeGradientPaint="";this.strokeName="";this.strokeOpacity=1;this.fill=true;this.fillColor=4278190080;this.fillGradient=null;this.fillGradientPaint=null;this.fillOpacity=1}}else{if(arguments[0]){this.element=arguments[1];this.vertexCodes=arguments[0].vertexCodes.slice();this.vertices=arguments[0].vertices.slice();this.stroke=arguments[0].stroke;this.strokeColor=arguments[0].strokeColor;this.strokeWeight=arguments[0].strokeWeight;this.strokeCap=arguments[0].strokeCap;this.strokeJoin=arguments[0].strokeJoin;this.strokeGradient=arguments[0].strokeGradient;this.strokeGradientPaint=arguments[0].strokeGradientPaint;this.strokeName=arguments[0].strokeName;this.fill=arguments[0].fill;this.fillColor=arguments[0].fillColor;this.fillGradient=arguments[0].fillGradient;this.fillGradientPaint=arguments[0].fillGradientPaint;this.fillName=arguments[0].fillName;this.strokeOpacity=arguments[0].strokeOpacity;this.fillOpacity=arguments[0].fillOpacity;this.opacity=arguments[0].opacity}}}}this.name=this.element.getStringAttribute("id");var d7=this.element.getStringAttribute("display","inline");this.visible=d7!=="none";var ec=this.element.getAttribute("transform");if(ec){this.matrix=this.parseMatrix(ec)}var d9=this.element.getStringAttribute("viewBox");if(d9!==null){var eb=d9.split(" ");this.width=eb[2];this.height=eb[3]}var d8=this.element.getStringAttribute("width");var ea=this.element.getStringAttribute("height");if(d8!==null){this.width=this.parseUnitSize(d8);this.height=this.parseUnitSize(ea)}else{if(this.width===0||this.height===0){this.width=1;this.height=1;throw"The width and/or height is not readable in the <svg> tag of this file."}}this.parseColors(this.element);this.parseChildren(this.element)};cq.prototype=new M;cq.prototype.parseMatrix=function(){function d7(d9){var d8=[];d9.replace(/\((.*?)\)/,function(){return function(ea,eb){d8=eb.replace(/,+/g," ").split(/\s+/)}}());return d8}return function(ef){this.checkMatrix(2);var d8=[];ef.replace(/\s*(\w+)\((.*?)\)/g,function(ei){d8.push(cV.trim(ei))});if(d8.length===0){return null}for(var ed=0,eb=d8.length;ed<eb;ed++){var d9=d7(d8[ed]);if(d8[ed].indexOf("matrix")!==-1){this.matrix.set(d9[0],d9[2],d9[4],d9[1],d9[3],d9[5])}else{if(d8[ed].indexOf("translate")!==-1){var ee=d9[0];var ec=d9.length===2?d9[1]:0;this.matrix.translate(ee,ec)}else{if(d8[ed].indexOf("scale")!==-1){var eh=d9[0];var eg=d9.length===2?d9[1]:d9[0];this.matrix.scale(eh,eg)}else{if(d8[ed].indexOf("rotate")!==-1){var ea=d9[0];if(d9.length===1){this.matrix.rotate(cV.radians(ea))}else{if(d9.length===3){this.matrix.translate(d9[1],d9[2]);this.matrix.rotate(cV.radians(d9[0]));this.matrix.translate(-d9[1],-d9[2])}}}else{if(d8[ed].indexOf("skewX")!==-1){this.matrix.skewX(parseFloat(d9[0]))}else{if(d8[ed].indexOf("skewY")!==-1){this.matrix.skewY(d9[0])}}}}}}}return this.matrix}}();cq.prototype.parseChildren=function(ec){var d8=ec.getChildren();var eb=new cV.PShape;for(var ea=0,d9=d8.length;ea<d9;ea++){var d7=this.parseChild(d8[ea]);if(d7){eb.addChild(d7)}}this.children.push(eb)};cq.prototype.getName=function(){return this.name};cq.prototype.parseChild=function(d9){var d8=d9.getName();var d7;if(d8==="g"){d7=new cq(this,d9)}else{if(d8==="defs"){d7=new cq(this,d9)}else{if(d8==="line"){d7=new cq(this,d9);d7.parseLine()}else{if(d8==="circle"){d7=new cq(this,d9);d7.parseEllipse(true)}else{if(d8==="ellipse"){d7=new cq(this,d9);d7.parseEllipse(false)}else{if(d8==="rect"){d7=new cq(this,d9);d7.parseRect()}else{if(d8==="polygon"){d7=new cq(this,d9);d7.parsePoly(true)}else{if(d8==="polyline"){d7=new cq(this,d9);d7.parsePoly(false)}else{if(d8==="path"){d7=new cq(this,d9);d7.parsePath()}else{if(d8==="radialGradient"){dt("PShapeSVG.prototype.parseChild, name = radialGradient")}else{if(d8==="linearGradient"){dt("PShapeSVG.prototype.parseChild, name = linearGradient")}else{if(d8==="text"){dt("PShapeSVG.prototype.parseChild, name = text")}else{if(d8==="filter"){dt("PShapeSVG.prototype.parseChild, name = filter")}else{if(d8==="mask"){dt("PShapeSVG.prototype.parseChild, name = mask")}else{E()}}}}}}}}}}}}}}return d7};cq.prototype.parsePath=function(){this.family=21;this.kind=0;var ec=[];var ew;var ev=cV.trim(this.element.getStringAttribute("d").replace(/[\s,]+/g," "));if(ev===null){return}ev=cV.__toCharArray(ev);var ea=0,d9=0,eh=0,ef=0,eg=0,ee=0,en=0,em=0,d8=0,d7=0,ej=0,ei=0,el=0,ek=0,eu=0,eq=0;var eo="";var es=[];var et=false;var ed;var eb;var er,ep;while(eu<ev.length){eq=ev[eu].valueOf();if(eq>=65&&eq<=90||eq>=97&&eq<=122){er=eu;eu++;if(eu<ev.length){es=[];eq=ev[eu].valueOf();while(!(eq>=65&&eq<=90||eq>=97&&eq<=100||eq>=102&&eq<=122)&&et===false){if(eq===32){if(eo!==""){es.push(parseFloat(eo));eo=""}eu++}else{if(eq===45){if(ev[eu-1].valueOf()===101){eo+=ev[eu].toString();eu++}else{if(eo!==""){es.push(parseFloat(eo))}eo=ev[eu].toString();eu++}}else{eo+=ev[eu].toString();eu++}}if(eu===ev.length){et=true}else{eq=ev[eu].valueOf()}}}if(eo!==""){es.push(parseFloat(eo));eo=""}eb=ev[er];eq=eb.valueOf();if(eq===77){if(es.length>=2&&es.length%2===0){ea=es[0];d9=es[1];this.parsePathMoveto(ea,d9);if(es.length>2){for(er=2,ep=es.length;er<ep;er+=2){ea=es[er];d9=es[er+1];this.parsePathLineto(ea,d9)}}}}else{if(eq===109){if(es.length>=2&&es.length%2===0){ea+=es[0];d9+=es[1];this.parsePathMoveto(ea,d9);if(es.length>2){for(er=2,ep=es.length;er<ep;er+=2){ea+=es[er];d9+=es[er+1];this.parsePathLineto(ea,d9)}}}}else{if(eq===76){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){ea=es[er];d9=es[er+1];this.parsePathLineto(ea,d9)}}}else{if(eq===108){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){ea+=es[er];d9+=es[er+1];this.parsePathLineto(ea,d9)}}}else{if(eq===72){for(er=0,ep=es.length;er<ep;er++){ea=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===104){for(er=0,ep=es.length;er<ep;er++){ea+=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===86){for(er=0,ep=es.length;er<ep;er++){d9=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===118){for(er=0,ep=es.length;er<ep;er++){d9+=es[er];this.parsePathLineto(ea,d9)}}else{if(eq===67){if(es.length>=6&&es.length%6===0){for(er=0,ep=es.length;er<ep;er+=6){eg=es[er];en=es[er+1];ee=es[er+2];em=es[er+3];d8=es[er+4];d7=es[er+5];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===99){if(es.length>=6&&es.length%6===0){for(er=0,ep=es.length;er<ep;er+=6){eg=ea+es[er];en=d9+es[er+1];ee=ea+es[er+2];em=d9+es[er+3];d8=ea+es[er+4];d7=d9+es[er+5];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===83){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){if(ed.toLowerCase()==="c"||ed.toLowerCase()==="s"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eg=el+(el-ej);en=ek+(ek-ei)}else{eg=this.vertices[this.vertices.length-1][0];en=this.vertices[this.vertices.length-1][1]}ee=es[er];em=es[er+1];d8=es[er+2];d7=es[er+3];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===115){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){if(ed.toLowerCase()==="c"||ed.toLowerCase()==="s"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eg=el+(el-ej);en=ek+(ek-ei)}else{eg=this.vertices[this.vertices.length-1][0];en=this.vertices[this.vertices.length-1][1]}ee=ea+es[er];em=d9+es[er+1];d8=ea+es[er+2];d7=d9+es[er+3];this.parsePathCurveto(eg,en,ee,em,d8,d7);ea=d8;d9=d7}}}else{if(eq===81){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){eh=es[er];ef=es[er+1];d8=es[er+2];d7=es[er+3];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===113){if(es.length>=4&&es.length%4===0){for(er=0,ep=es.length;er<ep;er+=4){eh=ea+es[er];ef=d9+es[er+1];d8=ea+es[er+2];d7=d9+es[er+3];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===84){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){if(ed.toLowerCase()==="q"||ed.toLowerCase()==="t"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eh=el+(el-ej);ef=ek+(ek-ei)}else{eh=ea;ef=d9}d8=es[er];d7=es[er+1];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===116){if(es.length>=2&&es.length%2===0){for(er=0,ep=es.length;er<ep;er+=2){if(ed.toLowerCase()==="q"||ed.toLowerCase()==="t"){ej=this.vertices[this.vertices.length-2][0];ei=this.vertices[this.vertices.length-2][1];el=this.vertices[this.vertices.length-1][0];ek=this.vertices[this.vertices.length-1][1];eh=el+(el-ej);ef=ek+(ek-ei)}else{eh=ea;ef=d9}d8=ea+es[er];d7=d9+es[er+1];this.parsePathQuadto(ea,d9,eh,ef,d8,d7);ea=d8;d9=d7}}}else{if(eq===90||eq===122){this.close=true}}}}}}}}}}}}}}}}}ed=eb.toString()}else{eu++}}};cq.prototype.parsePathQuadto=function(d9,eb,d7,ec,d8,ea){if(this.vertices.length>0){this.parsePathCode(1);this.parsePathVertex(d9+(d7-d9)*2/3,eb+(ec-eb)*2/3);this.parsePathVertex(d8+(d7-d8)*2/3,ea+(ec-ea)*2/3);this.parsePathVertex(d8,ea)}else{throw"Path must start with M/m"}};cq.prototype.parsePathCurveto=function(ea,ec,d8,eb,d7,d9){if(this.vertices.length>0){this.parsePathCode(1);this.parsePathVertex(ea,ec);this.parsePathVertex(d8,eb);this.parsePathVertex(d7,d9)}else{throw"Path must start with M/m"}};cq.prototype.parsePathLineto=function(d8,d7){if(this.vertices.length>0){this.parsePathCode(0);this.parsePathVertex(d8,d7);this.vertices[this.vertices.length-1]["moveTo"]=false}else{throw"Path must start with M/m"}};cq.prototype.parsePathMoveto=function(d8,d7){if(this.vertices.length>0){this.parsePathCode(3)}this.parsePathCode(0);this.parsePathVertex(d8,d7);this.vertices[this.vertices.length-1]["moveTo"]=true};cq.prototype.parsePathVertex=function(d7,d9){var d8=[];d8[0]=d7;d8[1]=d9;this.vertices.push(d8)};cq.prototype.parsePathCode=function(d7){this.vertexCodes.push(d7)};cq.prototype.parsePoly=function(eb){this.family=21;this.close=eb;var d8=cV.trim(this.element.getStringAttribute("points").replace(/[,\s]+/g," "));if(d8!==null){var d7=d8.split(" ");if(d7.length%2===0){for(var ea=0,d9=d7.length;ea<d9;ea++){var ec=[];ec[0]=d7[ea];ec[1]=d7[++ea];this.vertices.push(ec)}}else{throw"Error parsing polygon points: odd number of coordinates provided"}}};cq.prototype.parseRect=function(){this.kind=30;this.family=1;this.params=[];this.params[0]=this.element.getFloatAttribute("x");this.params[1]=this.element.getFloatAttribute("y");this.params[2]=this.element.getFloatAttribute("width");this.params[3]=this.element.getFloatAttribute("height");if(this.params[2]<0||this.params[3]<0){throw"svg error: negative width or height found while parsing <rect>"}};cq.prototype.parseEllipse=function(d9){this.kind=31;this.family=1;this.params=[];this.params[0]=this.element.getFloatAttribute("cx")|0;this.params[1]=this.element.getFloatAttribute("cy")|0;var d8,d7;if(d9){d8=d7=this.element.getFloatAttribute("r");if(d8<0){throw"svg error: negative radius found while parsing <circle>"}}else{d8=this.element.getFloatAttribute("rx");d7=this.element.getFloatAttribute("ry");if(d8<0||d7<0){throw"svg error: negative x-axis radius or y-axis radius found while parsing <ellipse>"}}this.params[0]-=d8;this.params[1]-=d7;this.params[2]=d8*2;this.params[3]=d7*2};cq.prototype.parseLine=function(){this.kind=4;this.family=1;this.params=[];this.params[0]=this.element.getFloatAttribute("x1");this.params[1]=this.element.getFloatAttribute("y1");this.params[2]=this.element.getFloatAttribute("x2");this.params[3]=this.element.getFloatAttribute("y2")};cq.prototype.parseColors=function(d9){if(d9.hasAttribute("opacity")){this.setOpacity(d9.getAttribute("opacity"))}if(d9.hasAttribute("stroke")){this.setStroke(d9.getAttribute("stroke"))}if(d9.hasAttribute("stroke-width")){this.setStrokeWeight(d9.getAttribute("stroke-width"))}if(d9.hasAttribute("stroke-linejoin")){this.setStrokeJoin(d9.getAttribute("stroke-linejoin"))}if(d9.hasAttribute("stroke-linecap")){this.setStrokeCap(d9.getStringAttribute("stroke-linecap"))}if(d9.hasAttribute("fill")){this.setFill(d9.getStringAttribute("fill"))}if(d9.hasAttribute("style")){var ec=d9.getStringAttribute("style");var ea=ec.toString().split(";");for(var d8=0,d7=ea.length;d8<d7;d8++){var eb=cV.trim(ea[d8].split(":"));if(eb[0]==="fill"){this.setFill(eb[1])}else{if(eb[0]==="fill-opacity"){this.setFillOpacity(eb[1])}else{if(eb[0]==="stroke"){this.setStroke(eb[1])}else{if(eb[0]==="stroke-width"){this.setStrokeWeight(eb[1])}else{if(eb[0]==="stroke-linecap"){this.setStrokeCap(eb[1])}else{if(eb[0]==="stroke-linejoin"){this.setStrokeJoin(eb[1])}else{if(eb[0]==="stroke-opacity"){this.setStrokeOpacity(eb[1])}else{if(eb[0]==="opacity"){this.setOpacity(eb[1])}}}}}}}}}}};cq.prototype.setFillOpacity=function(d7){this.fillOpacity=parseFloat(d7);this.fillColor=this.fillOpacity*255<<24|this.fillColor&16777215};cq.prototype.setFill=function(d7){var d8=this.fillColor&4278190080;if(d7==="none"){this.fill=false}else{if(d7.indexOf("#")===0){this.fill=true;if(d7.length===4){d7=d7.replace(/#(.)(.)(.)/,"#$1$1$2$2$3$3")}this.fillColor=d8|parseInt(d7.substring(1),16)&16777215}else{if(d7.indexOf("rgb")===0){this.fill=true;this.fillColor=d8|this.parseRGB(d7)}else{if(d7.indexOf("url(#")===0){this.fillName=d7.substring(5,d7.length-1)}else{if(C[d7]){this.fill=true;this.fillColor=d8|parseInt(C[d7].substring(1),16)&16777215}}}}}};cq.prototype.setOpacity=function(d7){this.strokeColor=parseFloat(d7)*255<<24|this.strokeColor&16777215;this.fillColor=parseFloat(d7)*255<<24|this.fillColor&16777215};cq.prototype.setStroke=function(d7){var d8=this.strokeColor&4278190080;if(d7==="none"){this.stroke=false}else{if(d7.charAt(0)==="#"){this.stroke=true;if(d7.length===4){d7=d7.replace(/#(.)(.)(.)/,"#$1$1$2$2$3$3")}this.strokeColor=d8|parseInt(d7.substring(1),16)&16777215}else{if(d7.indexOf("rgb")===0){this.stroke=true;this.strokeColor=d8|this.parseRGB(d7)}else{if(d7.indexOf("url(#")===0){this.strokeName=d7.substring(5,d7.length-1)}else{if(C[d7]){this.stroke=true;this.strokeColor=d8|parseInt(C[d7].substring(1),16)&16777215}}}}}};cq.prototype.setStrokeWeight=function(d7){this.strokeWeight=this.parseUnitSize(d7)};cq.prototype.setStrokeJoin=function(d7){if(d7==="miter"){this.strokeJoin="miter"}else{if(d7==="round"){this.strokeJoin="round"}else{if(d7==="bevel"){this.strokeJoin="bevel"}}}};cq.prototype.setStrokeCap=function(d7){if(d7==="butt"){this.strokeCap="butt"}else{if(d7==="round"){this.strokeCap="round"}else{if(d7==="square"){this.strokeCap="square"}}}};cq.prototype.setStrokeOpacity=function(d7){this.strokeOpacity=parseFloat(d7);this.strokeColor=this.strokeOpacity*255<<24|this.strokeColor&16777215};cq.prototype.parseRGB=function(d8){var d9=d8.substring(d8.indexOf("(")+1,d8.indexOf(")"));var d7=d9.split(", ");return d7[0]<<16|d7[1]<<8|d7[2]};cq.prototype.parseUnitSize=function(d8){var d7=d8.length-2;if(d7<0){return d8}if(d8.indexOf("pt")===d7){return parseFloat(d8.substring(0,d7))*1.25}if(d8.indexOf("pc")===d7){return parseFloat(d8.substring(0,d7))*15}if(d8.indexOf("mm")===d7){return parseFloat(d8.substring(0,d7))*3.543307}if(d8.indexOf("cm")===d7){return parseFloat(d8.substring(0,d7))*35.43307}if(d8.indexOf("in")===d7){return parseFloat(d8.substring(0,d7))*90}if(d8.indexOf("px")===d7){return parseFloat(d8.substring(0,d7))}return parseFloat(d8)};cV.shape=function(d9,d8,eb,ea,d7){if(arguments.length>=1&&arguments[0]!==null){if(d9.isVisible()){cV.pushMatrix();if(Q===3){if(arguments.length===5){cV.translate(d8-ea/2,eb-d7/2);cV.scale(ea/d9.getWidth(),d7/d9.getHeight())}else{if(arguments.length===3){cV.translate(d8-d9.getWidth()/2,-d9.getHeight()/2)}else{cV.translate(-d9.getWidth()/2,-d9.getHeight()/2)}}}else{if(Q===0){if(arguments.length===5){cV.translate(d8,eb);cV.scale(ea/d9.getWidth(),d7/d9.getHeight())}else{if(arguments.length===3){cV.translate(d8,eb)}}}else{if(Q===1){if(arguments.length===5){ea-=d8;d7-=eb;cV.translate(d8,eb);cV.scale(ea/d9.getWidth(),d7/d9.getHeight())}else{if(arguments.length===3){cV.translate(d8,eb)}}}}}d9.draw();if(arguments.length===1&&Q===3||arguments.length>1){cV.popMatrix()}}}};cV.shapeMode=function(d7){Q=d7};cV.loadShape=function(d7){if(arguments.length===1){if(d7.indexOf(".svg")>-1){return new cq(null,d7)}}return null};var cS=function(eb,ea,d7,d8,d9){this.fullName=eb||"";this.name=ea||"";this.namespace=d7||"";this.value=d8;this.type=d9};cS.prototype={getName:function(){return this.name},getFullName:function(){return this.fullName},getNamespace:function(){return this.namespace},getValue:function(){return this.value},getType:function(){return this.type},setValue:function(d7){this.value=d7}};var b8=cV.XMLElement=function(){this.attributes=[];this.children=[];this.fullName=null;this.name=null;this.namespace="";this.content=null;this.parent=null;this.lineNr="";this.systemID="";this.type="ELEMENT";if(arguments.length===4){this.fullName=arguments[0]||"";if(arguments[1]){this.name=arguments[1]}else{var d7=this.fullName.indexOf(":");if(d7>=0){this.name=this.fullName.substring(d7+1)}else{this.name=this.fullName}}this.namespace=arguments[1];this.lineNr=arguments[3];this.systemID=arguments[2]}else{if(arguments.length===2&&arguments[1].indexOf(".")>-1){this.parse(arguments[arguments.length-1])}else{if(arguments.length===1&&typeof arguments[0]==="string"){this.parse(arguments[0])}}}};b8.prototype={parse:function(d7){var d9;try{var eb=d7.substring(d7.length-4);if(eb===".xml"||eb===".svg"){d7=u(d7)}d9=(new DOMParser).parseFromString(d7,"text/xml");var d8=d9.documentElement;if(d8){this.parseChildrenRecursive(null,d8)}else{throw"Error loading document"}return this}catch(ea){throw ea}},parseChildrenRecursive:function(ef,ed){var ec,d8,ee,eb,ea,d7;if(!ef){this.fullName=ed.localName;this.name=ed.nodeName;ec=this}else{ec=new b8(ed.localName,ed.nodeName,"","");ec.parent=ef}if(ed.nodeType===3&&ed.textContent!==""){return this.createPCDataElement(ed.textContent)}for(eb=0,ea=ed.attributes.length;eb<ea;eb++){ee=ed.attributes[eb];d8=new cS(ee.getname,ee.nodeName,ee.namespaceURI,ee.nodeValue,ee.nodeType);ec.attributes.push(d8)}for(eb=0,ea=ed.childNodes.length;eb<ea;eb++){var d9=ed.childNodes[eb];if(d9.nodeType===1||d9.nodeType===3){d7=ec.parseChildrenRecursive(ec,d9);if(d7!==null){ec.children.push(d7)}}}return ec},createElement:function(){if(arguments.length===2){return new b8(arguments[0],arguments[1],null,null)}return new b8(arguments[0],arguments[1],arguments[2],arguments[3])},createPCDataElement:function(d7){if(d7.replace(/^\s+$/g,"")===""){return null}var d8=new b8;d8.content=d7;d8.type="TEXT";return d8},hasAttribute:function(){if(arguments.length===1){return this.getAttribute(arguments[0])!==null}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])!==null}},equals:function(ec){if(!(ec instanceof b8)){return false}var d9,d8;if(this.name!==ec.getLocalName()){return false}if(this.attributes.length!==ec.getAttributeCount()){return false}if(this.attributes.length!==ec.attributes.length){return false}var eg,ee,d7,ed,ef;for(d9=0,d8=this.attributes.length;d9<d8;d9++){eg=this.attributes[d9].getName();ee=this.attributes[d9].getNamespace();ef=ec.findAttribute(eg,ee);if(ef===null){return false}if(this.attributes[d9].getValue()!==ef.getValue()){return false}if(this.attributes[d9].getType()!==ef.getType()){return false}}if(this.children.length!==ec.getChildCount()){return false}if(this.children.length>0){var eb,ea;for(d9=0,d8=this.children.length;d9<d8;d9++){eb=this.getChild(d9);ea=ec.getChild(d9);if(!eb.equals(ea)){return false}}return true}return this.content===ec.content},getContent:function(){if(this.type==="TEXT"){return this.content}var d7=this.children;if(d7.length===1&&d7[0].type==="TEXT"){return d7[0].content}return null},getAttribute:function(){var d7;if(arguments.length===2){d7=this.findAttribute(arguments[0]);if(d7){return d7.getValue()}return arguments[1]}else{if(arguments.length===1){d7=this.findAttribute(arguments[0]);if(d7){return d7.getValue()}return null}else{if(arguments.length===3){d7=this.findAttribute(arguments[0],arguments[1]);if(d7){return d7.getValue()}return arguments[2]}}}},getStringAttribute:function(){if(arguments.length===1){return this.getAttribute(arguments[0])}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])}return this.getAttribute(arguments[0],arguments[1],arguments[2])},getString:function(d7){return this.getStringAttribute(d7)},getFloatAttribute:function(){if(arguments.length===1){return parseFloat(this.getAttribute(arguments[0],0))}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])}return this.getAttribute(arguments[0],arguments[1],arguments[2])},getFloat:function(d7){return this.getFloatAttribute(d7)},getIntAttribute:function(){if(arguments.length===1){return this.getAttribute(arguments[0],0)}if(arguments.length===2){return this.getAttribute(arguments[0],arguments[1])}return this.getAttribute(arguments[0],arguments[1],arguments[2])},getInt:function(d7){return this.getIntAttribute(d7)},hasChildren:function(){return this.children.length>0},addChild:function(d7){if(d7!==null){d7.parent=this;this.children.push(d7)}},insertChild:function(d9,d7){if(d9){if(d9.getLocalName()===null&&!this.hasChildren()){var d8=this.children[this.children.length-1];if(d8.getLocalName()===null){d8.setContent(d8.getContent()+d9.getContent());return}}d9.parent=this;this.children.splice(d7,0,d9)}},getChild:function(){if(typeof arguments[0]==="number"){return this.children[arguments[0]]}if(arguments[0].indexOf("/")!==-1){this.getChildRecursive(arguments[0].split("/"),0);return null}var d7,ea;for(var d9=0,d8=this.getChildCount();d9<d8;d9++){d7=this.getChild(d9);ea=d7.getName();if(ea!==null&&ea===arguments[0]){return d7}}return null},getChildren:function(){if(arguments.length===1){if(typeof arguments[0]==="number"){return this.getChild(arguments[0])}if(arguments[0].indexOf("/")!==-1){return this.getChildrenRecursive(arguments[0].split("/"),0)}var eb=[];var d7,ea;for(var d9=0,d8=this.getChildCount();d9<d8;d9++){d7=this.getChild(d9);ea=d7.getName();if(ea!==null&&ea===arguments[0]){eb.push(d7)}}return eb}return this.children},getChildCount:function(){return this.children.length},getChildRecursive:function(d8,ec){var d7,eb;for(var ea=0,d9=this.getChildCount();ea<d9;ea++){d7=this.getChild(ea);eb=d7.getName();if(eb!==null&&eb===d8[ec]){if(ec===d8.length-1){return d7}ec+=1;return d7.getChildRecursive(d8,ec)}}return null},getChildrenRecursive:function(d7,eb){if(eb===d7.length-1){return this.getChildren(d7[eb])}var ea=this.getChildren(d7[eb]);var d9=[];for(var d8=0;d8<ea.length;d8++){d9=d9.concat(ea[d8].getChildrenRecursive(d7,eb+1))}return d9},isLeaf:function(){return !this.hasChildren()},listChildren:function(){var d7=[];for(var d9=0,d8=this.children.length;d9<d8;d9++){d7.push(this.getChild(d9).getName())}return d7},removeAttribute:function(d8,ea){this.namespace=ea||"";for(var d9=0,d7=this.attributes.length;d9<d7;d9++){if(this.attributes[d9].getName()===d8&&this.attributes[d9].getNamespace()===this.namespace){this.attributes.splice(d9,1);break}}},removeChild:function(d9){if(d9){for(var d8=0,d7=this.children.length;d8<d7;d8++){if(this.children[d8].equals(d9)){this.children.splice(d8,1);break}}}},removeChildAtIndex:function(d7){if(this.children.length>d7){this.children.splice(d7,1)}},findAttribute:function(d8,ea){this.namespace=ea||"";for(var d9=0,d7=this.attributes.length;d9<d7;d9++){if(this.attributes[d9].getName()===d8&&this.attributes[d9].getNamespace()===this.namespace){return this.attributes[d9]}}return null},setAttribute:function(){var d7;if(arguments.length===3){var d9=arguments[0].indexOf(":");var d8=arguments[0].substring(d9+1);d7=this.findAttribute(d8,arguments[1]);if(d7){d7.setValue(arguments[2])}else{d7=new cS(arguments[0],d8,arguments[1],arguments[2],"CDATA");this.attributes.push(d7)}}else{d7=this.findAttribute(arguments[0]);if(d7){d7.setValue(arguments[1])}else{d7=new cS(arguments[0],arguments[0],null,arguments[1],"CDATA");this.attributes.push(d7)}}},setString:function(d7,d8){this.setAttribute(d7,d8)},setInt:function(d7,d8){this.setAttribute(d7,d8)},setFloat:function(d7,d8){this.setAttribute(d7,d8)},setContent:function(d7){if(this.children.length>0){D.debug("Tried to set content for XMLElement with children")}this.content=d7},setName:function(){if(arguments.length===1){this.name=arguments[0];this.fullName=arguments[0];this.namespace=null}else{var d7=arguments[0].indexOf(":");if(arguments[1]===null||d7<0){this.name=arguments[0]}else{this.name=arguments[0].substring(d7+1)}this.fullName=arguments[0];this.namespace=arguments[1]}},getName:function(){return this.fullName},getLocalName:function(){return this.name},getAttributeCount:function(){return this.attributes.length},toString:function(){if(this.type==="TEXT"){return this.content}var d9=(this.namespace!==""&&this.namespace!==this.name?this.namespace+":":"")+this.name;var ea="<"+d9;var d8,eb;for(d8=0;d8<this.attributes.length;d8++){var d7=this.attributes[d8];ea+=" "+d7.getName()+'="'+d7.getValue()+'"'}if(this.children.length===0){if(this.content===""){ea+="/>"}else{ea+=">"+this.content+"</"+d9+">"}}else{ea+=">";for(eb=0;eb<this.children.length;eb++){ea+=this.children[eb].toString()}ea+="</"+d9+">"}return ea}};b8.parse=function(d8){var d7=new b8;d7.parse(d8);return d7};var cl=function(ea){var d7=0;for(var d8=0;d8<ea.length;d8++){if(d8!==0){d7=o.max(d7,o.abs(ea[d8]))}else{d7=o.abs(ea[d8])}}var d9=(d7+"").indexOf(".");if(d9===0){d9=1}else{if(d9===-1){d9=(d7+"").length}}return d9};var aT=cV.PMatrix2D=function(){if(arguments.length===0){this.reset()}else{if(arguments.length===1&&arguments[0] instanceof aT){this.set(arguments[0].array())}else{if(arguments.length===6){this.set(arguments[0],arguments[1],arguments[2],arguments[3],arguments[4],arguments[5])}}}};aT.prototype={set:function(){if(arguments.length===6){var d7=arguments;this.set([d7[0],d7[1],d7[2],d7[3],d7[4],d7[5]])}else{if(arguments.length===1&&arguments[0] instanceof aT){this.elements=arguments[0].array()}else{if(arguments.length===1&&arguments[0] instanceof Array){this.elements=arguments[0].slice()}}}},get:function(){var d7=new aT;d7.set(this.elements);return d7},reset:function(){this.set([1,0,0,0,1,0])},array:function aD(){return this.elements.slice()},translate:function(d8,d7){this.elements[2]=d8*this.elements[0]+d7*this.elements[1]+this.elements[2];this.elements[5]=d8*this.elements[3]+d7*this.elements[4]+this.elements[5]},invTranslate:function(d8,d7){this.translate(-d8,-d7)},transpose:function(){},mult:function(d8,d9){var d7,ea;if(d8 instanceof y){d7=d8.x;ea=d8.y;if(!d9){d9=new y}}else{if(d8 instanceof Array){d7=d8[0];ea=d8[1];if(!d9){d9=[]}}}if(d9 instanceof Array){d9[0]=this.elements[0]*d7+this.elements[1]*ea+this.elements[2];d9[1]=this.elements[3]*d7+this.elements[4]*ea+this.elements[5]}else{if(d9 instanceof y){d9.x=this.elements[0]*d7+this.elements[1]*ea+this.elements[2];d9.y=this.elements[3]*d7+this.elements[4]*ea+this.elements[5];d9.z=0}}return d9},multX:function(d7,d8){return d7*this.elements[0]+d8*this.elements[1]+this.elements[2]},multY:function(d7,d8){return d7*this.elements[3]+d8*this.elements[4]+this.elements[5]},skewX:function(d7){this.apply(1,0,1,d7,0,0)},skewY:function(d7){this.apply(1,0,1,0,d7,0)},determinant:function(){return this.elements[0]*this.elements[4]-this.elements[1]*this.elements[3]},invert:function(){var ec=this.determinant();if(o.abs(ec)>-2147483648){var d8=this.elements[0];var ed=this.elements[1];var eb=this.elements[2];var ea=this.elements[3];var d9=this.elements[4];var d7=this.elements[5];this.elements[0]=d9/ec;this.elements[3]=-ea/ec;this.elements[1]=-ed/ec;this.elements[4]=d8/ec;this.elements[2]=(ed*d7-d9*eb)/ec;this.elements[5]=(ea*eb-d8*d7)/ec;return true}return false},scale:function(d8,d7){if(d8&&!d7){d7=d8}if(d8&&d7){this.elements[0]*=d8;this.elements[1]*=d7;this.elements[3]*=d8;this.elements[4]*=d7}},invScale:function(d8,d7){if(d8&&!d7){d7=d8}this.scale(1/d8,1/d7)},apply:function(){var d9;if(arguments.length===1&&arguments[0] instanceof aT){d9=arguments[0].array()}else{if(arguments.length===6){d9=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d9=arguments[0]}}}var d7=[0,0,this.elements[2],0,0,this.elements[5]];var ea=0;for(var eb=0;eb<2;eb++){for(var d8=0;d8<3;d8++,ea++){d7[ea]+=this.elements[eb*3+0]*d9[d8+0]+this.elements[eb*3+1]*d9[d8+3]}}this.elements=d7.slice()},preApply:function(){var d8;if(arguments.length===1&&arguments[0] instanceof aT){d8=arguments[0].array()}else{if(arguments.length===6){d8=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d8=arguments[0]}}}var d7=[0,0,d8[2],0,0,d8[5]];d7[2]=d8[2]+this.elements[2]*d8[0]+this.elements[5]*d8[1];d7[5]=d8[5]+this.elements[2]*d8[3]+this.elements[5]*d8[4];d7[0]=this.elements[0]*d8[0]+this.elements[3]*d8[1];d7[3]=this.elements[0]*d8[3]+this.elements[3]*d8[4];d7[1]=this.elements[1]*d8[0]+this.elements[4]*d8[1];d7[4]=this.elements[1]*d8[3]+this.elements[4]*d8[4];this.elements=d7.slice()},rotate:function(d9){var eb=o.cos(d9);var d7=o.sin(d9);var ea=this.elements[0];var d8=this.elements[1];this.elements[0]=eb*ea+d7*d8;this.elements[1]=-d7*ea+eb*d8;ea=this.elements[3];d8=this.elements[4];this.elements[3]=eb*ea+d7*d8;this.elements[4]=-d7*ea+eb*d8},rotateZ:function(d7){this.rotate(d7)},invRotateZ:function(d7){this.rotateZ(d7-o.PI)},print:function(){var d8=cl(this.elements);var d7=""+cV.nfs(this.elements[0],d8,4)+" "+cV.nfs(this.elements[1],d8,4)+" "+cV.nfs(this.elements[2],d8,4)+"\n"+cV.nfs(this.elements[3],d8,4)+" "+cV.nfs(this.elements[4],d8,4)+" "+cV.nfs(this.elements[5],d8,4)+"\n\n";cV.println(d7)}};var aM=cV.PMatrix3D=function(){this.reset()};aM.prototype={set:function(){if(arguments.length===16){this.elements=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof aM){this.elements=arguments[0].array()}else{if(arguments.length===1&&arguments[0] instanceof Array){this.elements=arguments[0].slice()}}}},get:function(){var d7=new aM;d7.set(this.elements);return d7},reset:function(){this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]},array:function aD(){return this.elements.slice()},translate:function(d8,d7,d9){if(d9===r){d9=0}this.elements[3]+=d8*this.elements[0]+d7*this.elements[1]+d9*this.elements[2];this.elements[7]+=d8*this.elements[4]+d7*this.elements[5]+d9*this.elements[6];this.elements[11]+=d8*this.elements[8]+d7*this.elements[9]+d9*this.elements[10];this.elements[15]+=d8*this.elements[12]+d7*this.elements[13]+d9*this.elements[14]},transpose:function(){var d7=this.elements[4];this.elements[4]=this.elements[1];this.elements[1]=d7;d7=this.elements[8];this.elements[8]=this.elements[2];this.elements[2]=d7;d7=this.elements[6];this.elements[6]=this.elements[9];this.elements[9]=d7;d7=this.elements[3];this.elements[3]=this.elements[12];this.elements[12]=d7;d7=this.elements[7];this.elements[7]=this.elements[13];this.elements[13]=d7;d7=this.elements[11];this.elements[11]=this.elements[14];this.elements[14]=d7},mult:function(d9,ea){var d7,ec,eb,d8;if(d9 instanceof y){d7=d9.x;ec=d9.y;eb=d9.z;d8=1;if(!ea){ea=new y}}else{if(d9 instanceof Array){d7=d9[0];ec=d9[1];eb=d9[2];d8=d9[3]||1;if(!ea||ea.length!==3&&ea.length!==4){ea=[0,0,0]}}}if(ea instanceof Array){if(ea.length===3){ea[0]=this.elements[0]*d7+this.elements[1]*ec+this.elements[2]*eb+this.elements[3];ea[1]=this.elements[4]*d7+this.elements[5]*ec+this.elements[6]*eb+this.elements[7];ea[2]=this.elements[8]*d7+this.elements[9]*ec+this.elements[10]*eb+this.elements[11]}else{if(ea.length===4){ea[0]=this.elements[0]*d7+this.elements[1]*ec+this.elements[2]*eb+this.elements[3]*d8;ea[1]=this.elements[4]*d7+this.elements[5]*ec+this.elements[6]*eb+this.elements[7]*d8;ea[2]=this.elements[8]*d7+this.elements[9]*ec+this.elements[10]*eb+this.elements[11]*d8;ea[3]=this.elements[12]*d7+this.elements[13]*ec+this.elements[14]*eb+this.elements[15]*d8}}}if(ea instanceof y){ea.x=this.elements[0]*d7+this.elements[1]*ec+this.elements[2]*eb+this.elements[3];ea.y=this.elements[4]*d7+this.elements[5]*ec+this.elements[6]*eb+this.elements[7];ea.z=this.elements[8]*d7+this.elements[9]*ec+this.elements[10]*eb+this.elements[11]}return ea},preApply:function(){var d9;if(arguments.length===1&&arguments[0] instanceof aM){d9=arguments[0].array()}else{if(arguments.length===16){d9=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d9=arguments[0]}}}var d7=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];var ea=0;for(var eb=0;eb<4;eb++){for(var d8=0;d8<4;d8++,ea++){d7[ea]+=this.elements[d8+0]*d9[eb*4+0]+this.elements[d8+4]*d9[eb*4+1]+this.elements[d8+8]*d9[eb*4+2]+this.elements[d8+12]*d9[eb*4+3]}}this.elements=d7.slice()},apply:function(){var d9;if(arguments.length===1&&arguments[0] instanceof aM){d9=arguments[0].array()}else{if(arguments.length===16){d9=Array.prototype.slice.call(arguments)}else{if(arguments.length===1&&arguments[0] instanceof Array){d9=arguments[0]}}}var d7=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];var ea=0;for(var eb=0;eb<4;eb++){for(var d8=0;d8<4;d8++,ea++){d7[ea]+=this.elements[eb*4+0]*d9[d8+0]+this.elements[eb*4+1]*d9[d8+4]+this.elements[eb*4+2]*d9[d8+8]+this.elements[eb*4+3]*d9[d8+12]}}this.elements=d7.slice()},rotate:function(eb,d7,ed,ea){if(!ed){this.rotateZ(eb)}else{var ec=cV.cos(eb);var d9=cV.sin(eb);var d8=1-ec;this.apply(d8*d7*d7+ec,d8*d7*ed-d9*ea,d8*d7*ea+d9*ed,0,d8*d7*ed+d9*ea,d8*ed*ed+ec,d8*ed*ea-d9*d7,0,d8*d7*ea-d9*ed,d8*ed*ea+d9*d7,d8*ea*ea+ec,0,0,0,0,1)}},invApply:function(){if(Z===r){Z=new aM}var d7=arguments;Z.set(d7[0],d7[1],d7[2],d7[3],d7[4],d7[5],d7[6],d7[7],d7[8],d7[9],d7[10],d7[11],d7[12],d7[13],d7[14],d7[15]);if(!Z.invert()){return false}this.preApply(Z);return true},rotateX:function(d8){var d9=cV.cos(d8);var d7=cV.sin(d8);this.apply([1,0,0,0,0,d9,-d7,0,0,d7,d9,0,0,0,0,1])},rotateY:function(d8){var d9=cV.cos(d8);var d7=cV.sin(d8);this.apply([d9,0,d7,0,0,1,0,0,-d7,0,d9,0,0,0,0,1])},rotateZ:function(d8){var d9=o.cos(d8);var d7=o.sin(d8);this.apply([d9,-d7,0,0,d7,d9,0,0,0,0,1,0,0,0,0,1])},scale:function(d9,d8,d7){if(d9&&!d8&&!d7){d8=d7=d9}else{if(d9&&d8&&!d7){d7=1}}if(d9&&d8&&d7){this.elements[0]*=d9;this.elements[1]*=d8;this.elements[2]*=d7;this.elements[4]*=d9;this.elements[5]*=d8;this.elements[6]*=d7;this.elements[8]*=d9;this.elements[9]*=d8;this.elements[10]*=d7;this.elements[12]*=d9;this.elements[13]*=d8;this.elements[14]*=d7}},skewX:function(d8){var d7=o.tan(d8);this.apply(1,d7,0,0,0,1,0,0,0,0,1,0,0,0,0,1)},skewY:function(d8){var d7=o.tan(d8);this.apply(1,0,0,0,d7,1,0,0,0,0,1,0,0,0,0,1)},multX:function(d7,ea,d9,d8){if(!d9){return this.elements[0]*d7+this.elements[1]*ea+this.elements[3]}if(!d8){return this.elements[0]*d7+this.elements[1]*ea+this.elements[2]*d9+this.elements[3]}return this.elements[0]*d7+this.elements[1]*ea+this.elements[2]*d9+this.elements[3]*d8},multY:function(d7,ea,d9,d8){if(!d9){return this.elements[4]*d7+this.elements[5]*ea+this.elements[7]}if(!d8){return this.elements[4]*d7+this.elements[5]*ea+this.elements[6]*d9+this.elements[7]}return this.elements[4]*d7+this.elements[5]*ea+this.elements[6]*d9+this.elements[7]*d8},multZ:function(d7,ea,d9,d8){if(!d8){return this.elements[8]*d7+this.elements[9]*ea+this.elements[10]*d9+this.elements[11]}return this.elements[8]*d7+this.elements[9]*ea+this.elements[10]*d9+this.elements[11]*d8},multW:function(d7,ea,d9,d8){if(!d8){return this.elements[12]*d7+this.elements[13]*ea+this.elements[14]*d9+this.elements[15]}return this.elements[12]*d7+this.elements[13]*ea+this.elements[14]*d9+this.elements[15]*d8},invert:function(){var eg=this.elements[0]*this.elements[5]-this.elements[1]*this.elements[4];var ef=this.elements[0]*this.elements[6]-this.elements[2]*this.elements[4];var ee=this.elements[0]*this.elements[7]-this.elements[3]*this.elements[4];var ed=this.elements[1]*this.elements[6]-this.elements[2]*this.elements[5];var ec=this.elements[1]*this.elements[7]-this.elements[3]*this.elements[5];var eb=this.elements[2]*this.elements[7]-this.elements[3]*this.elements[6];var ea=this.elements[8]*this.elements[13]-this.elements[9]*this.elements[12];var d9=this.elements[8]*this.elements[14]-this.elements[10]*this.elements[12];var d8=this.elements[8]*this.elements[15]-this.elements[11]*this.elements[12];var el=this.elements[9]*this.elements[14]-this.elements[10]*this.elements[13];var ej=this.elements[9]*this.elements[15]-this.elements[11]*this.elements[13];var ei=this.elements[10]*this.elements[15]-this.elements[11]*this.elements[14];var ek=eg*ei-ef*ej+ee*el+ed*d8-ec*d9+eb*ea;if(o.abs(ek)<=1e-9){return false}var eh=[];eh[0]=+this.elements[5]*ei-this.elements[6]*ej+this.elements[7]*el;eh[4]=-this.elements[4]*ei+this.elements[6]*d8-this.elements[7]*d9;eh[8]=+this.elements[4]*ej-this.elements[5]*d8+this.elements[7]*ea;eh[12]=-this.elements[4]*el+this.elements[5]*d9-this.elements[6]*ea;eh[1]=-this.elements[1]*ei+this.elements[2]*ej-this.elements[3]*el;eh[5]=+this.elements[0]*ei-this.elements[2]*d8+this.elements[3]*d9;eh[9]=-this.elements[0]*ej+this.elements[1]*d8-this.elements[3]*ea;eh[13]=+this.elements[0]*el-this.elements[1]*d9+this.elements[2]*ea;eh[2]=+this.elements[13]*eb-this.elements[14]*ec+this.elements[15]*ed;eh[6]=-this.elements[12]*eb+this.elements[14]*ee-this.elements[15]*ef;eh[10]=+this.elements[12]*ec-this.elements[13]*ee+this.elements[15]*eg;eh[14]=-this.elements[12]*ed+this.elements[13]*ef-this.elements[14]*eg;eh[3]=-this.elements[9]*eb+this.elements[10]*ec-this.elements[11]*ed;eh[7]=+this.elements[8]*eb-this.elements[10]*ee+this.elements[11]*ef;eh[11]=-this.elements[8]*ec+this.elements[9]*ee-this.elements[11]*eg;eh[15]=+this.elements[8]*ed-this.elements[9]*ef+this.elements[10]*eg;var d7=1/ek;eh[0]*=d7;eh[1]*=d7;eh[2]*=d7;eh[3]*=d7;eh[4]*=d7;eh[5]*=d7;eh[6]*=d7;eh[7]*=d7;eh[8]*=d7;eh[9]*=d7;eh[10]*=d7;eh[11]*=d7;eh[12]*=d7;eh[13]*=d7;eh[14]*=d7;eh[15]*=d7;this.elements=eh.slice();return true},toString:function(){var d8="";for(var d7=0;d7<15;d7++){d8+=this.elements[d7]+", "}d8+=this.elements[15];return d8},print:function(){var d8=cl(this.elements);var d7=""+cV.nfs(this.elements[0],d8,4)+" "+cV.nfs(this.elements[1],d8,4)+" "+cV.nfs(this.elements[2],d8,4)+" "+cV.nfs(this.elements[3],d8,4)+"\n"+cV.nfs(this.elements[4],d8,4)+" "+cV.nfs(this.elements[5],d8,4)+" "+cV.nfs(this.elements[6],d8,4)+" "+cV.nfs(this.elements[7],d8,4)+"\n"+cV.nfs(this.elements[8],d8,4)+" "+cV.nfs(this.elements[9],d8,4)+" "+cV.nfs(this.elements[10],d8,4)+" "+cV.nfs(this.elements[11],d8,4)+"\n"+cV.nfs(this.elements[12],d8,4)+" "+cV.nfs(this.elements[13],d8,4)+" "+cV.nfs(this.elements[14],d8,4)+" "+cV.nfs(this.elements[15],d8,4)+"\n\n";cV.println(d7)},invTranslate:function(d8,d7,d9){this.preApply(1,0,0,-d8,0,1,0,-d7,0,0,1,-d9,0,0,0,1)},invRotateX:function(d8){var d9=o.cos(-d8);var d7=o.sin(-d8);this.preApply([1,0,0,0,0,d9,-d7,0,0,d7,d9,0,0,0,0,1])},invRotateY:function(d8){var d9=o.cos(-d8);var d7=o.sin(-d8);this.preApply([d9,0,d7,0,0,1,0,0,-d7,0,d9,0,0,0,0,1])},invRotateZ:function(d8){var d9=o.cos(-d8);var d7=o.sin(-d8);this.preApply([d9,-d7,0,0,d7,d9,0,0,0,0,1,0,0,0,0,1])},invScale:function(d7,d9,d8){this.preApply([1/d7,0,0,0,0,1/d9,0,0,0,0,1/d8,0,0,0,0,1])}};var T=cV.PMatrixStack=function(){this.matrixStack=[]};T.prototype.load=function(){var d7=dU.$newPMatrix();if(arguments.length===1){d7.set(arguments[0])}else{d7.set(arguments)}this.matrixStack.push(d7)};bO.prototype.$newPMatrix=function(){return new aT};by.prototype.$newPMatrix=function(){return new aM};T.prototype.push=function(){this.matrixStack.push(this.peek())};T.prototype.pop=function(){return this.matrixStack.pop()};T.prototype.peek=function(){var d7=dU.$newPMatrix();d7.set(this.matrixStack[this.matrixStack.length-1]);return d7};T.prototype.mult=function(d7){this.matrixStack[this.matrixStack.length-1].apply(d7)};cV.split=function(d8,d7){return d8.split(d7)};cV.splitTokens=function(ea,d9){if(arguments.length===1){d9="\n\t\r\u000c "}d9="["+d9+"]";var d8=[];var d7=0;var eb=ea.search(d9);while(eb>=0){if(eb===0){ea=ea.substring(1)}else{d8[d7]=ea.substring(0,eb);d7++;ea=ea.substring(eb)}eb=ea.search(d9)}if(ea.length>0){d8[d7]=ea}if(d8.length===0){d8=r}return d8};cV.append=function(d8,d7){d8[d8.length]=d7;return d8};cV.concat=function(d8,d7){return d8.concat(d7)};cV.sort=function(ec,ea){var d8=[];if(ec.length>0){var eb=ea>0?ea:ec.length;for(var d9=0;d9<eb;d9++){d8.push(ec[d9])}if(typeof ec[0]==="string"){d8.sort()}else{d8.sort(function(ee,ed){return ee-ed})}if(ea>0){for(var d7=d8.length;d7<ec.length;d7++){d8.push(ec[d7])}}}return d8};cV.splice=function(eb,ea,d8){if(ea.length===0){return eb}if(ea instanceof Array){for(var d9=0,d7=d8;d9<ea.length;d7++,d9++){eb.splice(d7,0,ea[d9])}}else{eb.splice(d8,0,ea)}return eb};cV.subset=function(ea,d9,d8){var d7=d8!==r?d9+d8:ea.length;return ea.slice(d9,d7)};cV.join=function(d8,d7){return d8.join(d7)};cV.shorten=function(ea){var d8=[];var d7=ea.length;for(var d9=0;d9<d7;d9++){d8[d9]=ea[d9]}d8.pop();return d8};cV.expand=function(d9,ea){var d8=d9.slice(0),d7=ea||d9.length*2;d8.length=d7;return d8};cV.arrayCopy=function(){var ed,eb=0,d9,d8=0,ec;if(arguments.length===2){ed=arguments[0];d9=arguments[1];ec=ed.length}else{if(arguments.length===3){ed=arguments[0];d9=arguments[1];ec=arguments[2]}else{if(arguments.length===5){ed=arguments[0];eb=arguments[1];d9=arguments[2];d8=arguments[3];ec=arguments[4]}}}for(var ea=eb,d7=d8;ea<ec+eb;ea++,d7++){if(d9[d7]!==r){d9[d7]=ed[ea]}else{throw"array index out of bounds exception"}}};cV.reverse=function(d7){return d7.reverse()};cV.mix=function(d8,d7,d9){return d8+((d7-d8)*d9>>8)};cV.peg=function(d7){return d7<0?0:d7>255?255:d7};cV.modes=function(){var ec=4278190080,d9=16711680,d8=65280,eb=255,ea=o.min,d7=o.max;function ed(ei,el,eh,eq,es,er,ej,en,em,ef,eg){var ep=ea(((ei&4278190080)>>>24)+el,255)<<24;var ee=eh+((em-eh)*el>>8);ee=(ee<0?0:ee>255?255:ee)<<16;var ek=eq+((ef-eq)*el>>8);ek=(ek<0?0:ek>255?255:ek)<<8;var eo=es+((eg-es)*el>>8);eo=eo<0?0:eo>255?255:eo;return ep|ee|ek|eo}return{replace:function(ef,ee){return ee},blend:function(eg,ef){var ei=(ef&ec)>>>24,ee=eg&d9,ek=eg&d8,em=eg&eb,el=ef&d9,eh=ef&d8,ej=ef&eb;return ea(((eg&ec)>>>24)+ei,255)<<24|ee+((el-ee)*ei>>8)&d9|ek+((eh-ek)*ei>>8)&d8|em+((ej-em)*ei>>8)&eb},add:function(ef,ee){var eg=(ee&ec)>>>24;return ea(((ef&ec)>>>24)+eg,255)<<24|ea((ef&d9)+((ee&d9)>>8)*eg,d9)&d9|ea((ef&d8)+((ee&d8)>>8)*eg,d8)&d8|ea((ef&eb)+((ee&eb)*eg>>8),eb)},subtract:function(ef,ee){var eg=(ee&ec)>>>24;return ea(((ef&ec)>>>24)+eg,255)<<24|d7((ef&d9)-((ee&d9)>>8)*eg,d8)&d9|d7((ef&d8)-((ee&d8)>>8)*eg,eb)&d8|d7((ef&eb)-((ee&eb)*eg>>8),0)},lightest:function(ef,ee){var eg=(ee&ec)>>>24;return ea(((ef&ec)>>>24)+eg,255)<<24|d7(ef&d9,((ee&d9)>>8)*eg)&d9|d7(ef&d8,((ee&d8)>>8)*eg)&d8|d7(ef&eb,(ee&eb)*eg>>8)},darkest:function(eg,ef){var ei=(ef&ec)>>>24,ee=eg&d9,ek=eg&d8,em=eg&eb,el=ea(eg&d9,((ef&d9)>>8)*ei),eh=ea(eg&d8,((ef&d8)>>8)*ei),ej=ea(eg&eb,(ef&eb)*ei>>8);return ea(((eg&ec)>>>24)+ei,255)<<24|ee+((el-ee)*ei>>8)&d9|ek+((eh-ek)*ei>>8)&d8|em+((ej-em)*ei>>8)&eb},difference:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg>eo?eg-eo:eo-eg,ee=en>ej?en-ej:ej-en,ef=ep>em?ep-em:em-ep;return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},exclusion:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg+eo-(eg*eo>>7),ee=en+ej-(en*ej>>7),ef=ep+em-(ep*em>>7);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},multiply:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg*eo>>8,ee=en*ej>>8,ef=ep*em>>8;return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},screen:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=255-((255-eg)*(255-eo)>>8),ee=255-((255-en)*(255-ej)>>8),ef=255-((255-ep)*(255-em)>>8);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},hard_light:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eo<128?eg*eo>>7:255-((255-eg)*(255-eo)>>7),ee=ej<128?en*ej>>7:255-((255-en)*(255-ej)>>7),ef=em<128?ep*em>>7:255-((255-ep)*(255-em)>>7);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},soft_light:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=(eg*eo>>7)+(eg*eg>>8)-(eg*eg*eo>>15),ee=(en*ej>>7)+(en*en>>8)-(en*en*ej>>15),ef=(ep*em>>7)+(ep*ep>>8)-(ep*ep*em>>15);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},overlay:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb,el=eg<128?eg*eo>>7:255-((255-eg)*(255-eo)>>7),ee=en<128?en*ej>>7:255-((255-en)*(255-ej)>>7),ef=ep<128?ep*em>>7:255-((255-ep)*(255-em)>>7);return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},dodge:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb;var el=255;if(eo!==255){el=(eg<<8)/(255-eo);el=el<0?0:el>255?255:el}var ee=255;if(ej!==255){ee=(en<<8)/(255-ej);ee=ee<0?0:ee>255?255:ee}var ef=255;if(em!==255){ef=(ep<<8)/(255-em);ef=ef<0?0:ef>255?255:ef}return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)},burn:function(ei,eh){var ek=(eh&ec)>>>24,eg=(ei&d9)>>16,en=(ei&d8)>>8,ep=ei&eb,eo=(eh&d9)>>16,ej=(eh&d8)>>8,em=eh&eb;var el=0;if(eo!==0){el=(255-eg<<8)/eo;el=255-(el<0?0:el>255?255:el)}var ee=0;if(ej!==0){ee=(255-en<<8)/ej;ee=255-(ee<0?0:ee>255?255:ee)}var ef=0;if(em!==0){ef=(255-ep<<8)/em;ef=255-(ef<0?0:ef>255?255:ef)}return ed(ei,ek,eg,en,ep,eo,ej,em,el,ee,ef)}}}();function dD(ec,eb,d9,d8){var d7,ea,ee,ef;if(cX===3){var ed=cV.color.toRGB(ec,eb,d9);d7=ed[0];ea=ed[1];ee=ed[2]}else{d7=o.round(255*(ec/bG));ea=o.round(255*(eb/bF));ee=o.round(255*(d9/bD))}ef=o.round(255*(d8/bR));d7=d7<0?0:d7;ea=ea<0?0:ea;ee=ee<0?0:ee;ef=ef<0?0:ef;d7=d7>255?255:d7;ea=ea>255?255:ea;ee=ee>255?255:ee;ef=ef>255?255:ef;return ef<<24&4278190080|d7<<16&16711680|ea<<8&65280|ee&255}function dG(d7,d9){var d8;if(d7&4278190080){d8=o.round(255*(d9/bR));d8=d8>255?255:d8;d8=d8<0?0:d8;return d7-(d7&4278190080)+(d8<<24&4278190080)}if(cX===1){return dD(d7,d7,d7,d9)}if(cX===3){return dD(0,0,d7/bG*bD,d9)}}function dI(d7){if(d7<=bG&&d7>=0){if(cX===1){return dD(d7,d7,d7,bR)}if(cX===3){return dD(0,0,d7/bG*bD,bR)}}if(d7){if(d7>2147483647){d7-=4294967296}return d7}}cV.color=function(d7,ea,d9,d8){if(d7!==r&&ea!==r&&d9!==r&&d8!==r){return dD(d7,ea,d9,d8)}if(d7!==r&&ea!==r&&d9!==r){return dD(d7,ea,d9,bR)}if(d7!==r&&ea!==r){return dG(d7,ea)}if(typeof d7==="number"){return dI(d7)}return dD(bG,bF,bD,bR)};cV.color.toString=function(d7){return"rgba("+((d7>>16)&255)+","+((d7>>8)&255)+","+(d7&255)+","+((d7>>24)&255)/255+")"};cV.color.toInt=function(ea,d9,d7,d8){return d8<<24&4278190080|ea<<16&16711680|d9<<8&65280|d7&255};cV.color.toArray=function(d7){return[(d7>>16)&255,(d7>>8)&255,d7&255,(d7>>24)&255]};cV.color.toGLArray=function(d7){return[((d7>>16)&255)/255,((d7>>8)&255)/255,(d7&255)/255,((d7&4278190080)>>>24)/255]};cV.color.toRGB=function(d9,ef,ec){d9=d9>bG?bG:d9;ef=ef>bF?bF:ef;ec=ec>bD?bD:ec;d9=d9/bG*360;ef=ef/bF*100;ec=ec/bD*100;var ee=o.round(ec/100*255);if(ef===0){return[ee,ee,ee]}var ea=d9%360;var eb=ea%60;var d8=o.round(ec*(100-ef)/10000*255);var d7=o.round(ec*(6000-ef*eb)/600000*255);var ed=o.round(ec*(6000-ef*(60-eb))/600000*255);switch(o.floor(ea/60)){case 0:return[ee,ed,d8];case 1:return[d7,ee,d8];case 2:return[d8,ee,ed];case 3:return[d8,d7,ee];case 4:return[ed,d8,ee];case 5:return[ee,d8,d7]}};function aP(ee){var ed,ec,d8;ed=((ee>>16)&255)/255;ec=((ee>>8)&255)/255;d8=(ee&255)/255;var d7=cV.max(cV.max(ed,ec),d8),ea=cV.min(cV.min(ed,ec),d8),d9,eb;if(ea===d7){return[0,0,d7*bD]}eb=(d7-ea)/d7;if(ed===d7){d9=(ec-d8)/(d7-ea)}else{if(ec===d7){d9=2+(d8-ed)/(d7-ea)}else{d9=4+(ed-ec)/(d7-ea)}}d9/=6;if(d9<0){d9+=1}else{if(d9>1){d9-=1}}return[d9*bG,eb*bF,d7*bD]}cV.brightness=function(d7){return aP(d7)[2]};cV.saturation=function(d7){return aP(d7)[1]};cV.hue=function(d7){return aP(d7)[0]};cV.red=function(d7){return((d7>>16)&255)/255*bG};cV.green=function(d7){return((d7>>8)&255)/255*bF};cV.blue=function(d7){return(d7&255)/255*bD};cV.alpha=function(d7){return((d7>>24)&255)/255*bR};cV.lerpColor=function(ej,ei,ec){var eh,en,eo,ep,el,d7,ed,er,ek,es,eb,eq;var ef,ee,d8,em,eg;var ea=cV.color(ej);var d9=cV.color(ei);if(cX===3){ef=aP(ea);er=((ea>>24)&255)/bR;ee=aP(d9);eq=((d9>>24)&255)/bR;em=cV.lerp(ef[0],ee[0],ec);eg=cV.lerp(ef[1],ee[1],ec);eo=cV.lerp(ef[2],ee[2],ec);d8=cV.color.toRGB(em,eg,eo);ep=cV.lerp(er,eq,ec)*bR;return ep<<24&4278190080|(d8[0]&255)<<16|(d8[1]&255)<<8|d8[2]&255}el=(ea>>16)&255;d7=(ea>>8)&255;ed=ea&255;er=((ea>>24)&255)/bR;ek=(d9>>16)&255;es=(d9>>8)&255;eb=d9&255;eq=((d9&4278190080)>>>24)/bR;eh=cV.lerp(el,ek,ec)|0;en=cV.lerp(d7,es,ec)|0;eo=cV.lerp(ed,eb,ec)|0;ep=cV.lerp(er,eq,ec)*bR;return ep<<24&4278190080|eh<<16&16711680|en<<8&65280|eo&255};cV.colorMode=function(){cX=arguments[0];if(arguments.length>1){bG=arguments[1];bF=arguments[2]||arguments[1];bD=arguments[3]||arguments[1];bR=arguments[4]||arguments[1]}};cV.blendColor=function(d8,d7,d9){if(d9===0){return cV.modes.replace(d8,d7)}else{if(d9===1){return cV.modes.blend(d8,d7)}else{if(d9===2){return cV.modes.add(d8,d7)}else{if(d9===4){return cV.modes.subtract(d8,d7)}else{if(d9===8){return cV.modes.lightest(d8,d7)}else{if(d9===16){return cV.modes.darkest(d8,d7)}else{if(d9===32){return cV.modes.difference(d8,d7)}else{if(d9===64){return cV.modes.exclusion(d8,d7)}else{if(d9===128){return cV.modes.multiply(d8,d7)}else{if(d9===256){return cV.modes.screen(d8,d7)}else{if(d9===1024){return cV.modes.hard_light(d8,d7)}else{if(d9===2048){return cV.modes.soft_light(d8,d7)}else{if(d9===512){return cV.modes.overlay(d8,d7)}else{if(d9===4096){return cV.modes.dodge(d8,d7)}else{if(d9===8192){return cV.modes.burn(d8,d7)}}}}}}}}}}}}}}}};function aC(){d4.save()}function cO(){d4.restore();b2=true;ap=true}cV.printMatrix=function(){dF.print()};bO.prototype.translate=function(d7,d8){dF.translate(d7,d8);aQ.invTranslate(d7,d8);d4.translate(d7,d8)};by.prototype.translate=function(d7,d9,d8){dF.translate(d7,d9,d8);aQ.invTranslate(d7,d9,d8)};bO.prototype.scale=function(d7,d8){dF.scale(d7,d8);aQ.invScale(d7,d8);d4.scale(d7,d8||d7)};by.prototype.scale=function(d7,d9,d8){dF.scale(d7,d9,d8);aQ.invScale(d7,d9,d8)};bO.prototype.pushMatrix=function(){al.load(dF);c9.load(aQ);aC()};by.prototype.pushMatrix=function(){al.load(dF);c9.load(aQ)};bO.prototype.popMatrix=function(){dF.set(al.pop());aQ.set(c9.pop());cO()};by.prototype.popMatrix=function(){dF.set(al.pop());aQ.set(c9.pop())};bO.prototype.resetMatrix=function(){dF.reset();aQ.reset();d4.setTransform(1,0,0,1,0,0)};by.prototype.resetMatrix=function(){dF.reset();aQ.reset()};dp.prototype.applyMatrix=function(){var d7=arguments;dF.apply(d7[0],d7[1],d7[2],d7[3],d7[4],d7[5],d7[6],d7[7],d7[8],d7[9],d7[10],d7[11],d7[12],d7[13],d7[14],d7[15]);aQ.invApply(d7[0],d7[1],d7[2],d7[3],d7[4],d7[5],d7[6],d7[7],d7[8],d7[9],d7[10],d7[11],d7[12],d7[13],d7[14],d7[15])};bO.prototype.applyMatrix=function(){var d7=arguments;for(var d8=d7.length;d8<16;d8++){d7[d8]=0}d7[10]=d7[15]=1;dp.prototype.applyMatrix.apply(this,d7)};cV.rotateX=function(d7){dF.rotateX(d7);aQ.invRotateX(d7)};bO.prototype.rotateZ=function(){throw"rotateZ() is not supported in 2D mode. 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cn(d7/60000&4294967295,d7&4294967295)};cV.randomSeed=function(d7){bW=(new cn(d7)).nextDouble};cV.Random=function(d7){var ea=false,d8,d9;this.nextGaussian=function(){if(ea){ea=false;return d8}var ee,ec,eb;do{ee=2*d9()-1;ec=2*d9()-1;eb=ee*ee+ec*ec}while(eb>=1||eb===0);var ed=o.sqrt(-2*o.log(eb)/eb);d8=ec*ed;ea=true;return ee*ed};d9=d7===r?o.random:(new cn(d7)).nextDouble};function dw(ee){var d8=ee!==r?new cn(ee):cn.createRandomized();var ed,eb;var ea=new b(512);for(ed=0;ed<256;++ed){ea[ed]=ed}for(ed=0;ed<256;++ed){var eg=ea[eb=d8.nextInt()&255];ea[eb]=ea[ed];ea[ed]=eg}for(ed=0;ed<256;++ed){ea[ed+256]=ea[ed]}function d7(ek,eh,en,em){var el=ek&15;var ej=el<8?eh:en,ei=el<4?en:el===12||el===14?eh:em;return((el&1)===0?ej:-ej)+((el&2)===0?ei:-ei)}function ec(ej,eh,ek){var ei=(ej&1)===0?eh:ek;return(ej&2)===0?-ei:ei}function ef(ei,eh){return(ei&1)===0?-eh:eh}function d9(ej,ei,eh){return ei+ej*(eh-ei)}this.noise3d=function(et,es,er){var 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bU={generator:r,octaves:4,fallout:0.5,seed:r};cV.noise=function(d7,ee,ed){if(bU.generator===r){bU.generator=new dw(bU.seed)}var ec=bU.generator;var eb=1,d8=1,ea=0;for(var d9=0;d9<bU.octaves;++d9){eb*=bU.fallout;switch(arguments.length){case 1:ea+=eb*(1+ec.noise1d(d8*d7))/2;break;case 2:ea+=eb*(1+ec.noise2d(d8*d7,d8*ee))/2;break;case 3:ea+=eb*(1+ec.noise3d(d8*d7,d8*ee,d8*ed))/2;break}d8*=2}return ea};cV.noiseDetail=function(d8,d7){bU.octaves=d8;if(d7!==r){bU.fallout=d7}};cV.noiseSeed=function(d7){bU.seed=d7;bU.generator=r};dp.prototype.size=function(d8,eb,ea){if(cd){cV.stroke(0)}if(aF){cV.fill(255)}var d9={fillStyle:d4.fillStyle,strokeStyle:d4.strokeStyle,lineCap:d4.lineCap,lineJoin:d4.lineJoin};if(ac.style.length>0){ac.style.removeProperty("width");ac.style.removeProperty("height")}ac.width=cV.width=d8||100;ac.height=cV.height=eb||100;for(var ec in d9){if(d9.hasOwnProperty(ec)){d4[ec]=d9[ec]}}cV.textFont(U);cV.background();bY=o.max(1000,d8*eb*0.05);cV.externals.context=d4;for(var d7=0;d7<720;d7++){ag[d7]=cV.sin(d7*(o.PI/180)*0.5);bi[d7]=cV.cos(d7*(o.PI/180)*0.5)}};bO.prototype.size=function(d7,d9,d8){if(d4===r){d4=ac.getContext("2d");al=new T;c9=new T;dF=new aT;aQ=new aT}dp.prototype.size.apply(this,arguments)};by.prototype.size=function(){var d8=false;return function d7(ea,ec,eb){if(d8){throw"Multiple calls to size() for 3D renders are not allowed."}d8=true;function ed(ef){var ei=["experimental-webgl","webgl","webkit-3d"],eh;for(var eg=0,ee=ei.length;eg<ee;eg++){eh=ef.getContext(ei[eg],{antialias:false});if(eh){break}}return eh}try{ac.width=cV.width=ea||100;ac.height=cV.height=ec||100;d4=ed(ac);c6=d4.createTexture();bP=d4.createTexture()}catch(d9){D.debug(d9)}if(!d4){throw"WebGL context is not supported on this browser."}d4.viewport(0,0,ac.width,ac.height);d4.enable(d4.DEPTH_TEST);d4.enable(d4.BLEND);d4.blendFunc(d4.SRC_ALPHA,d4.ONE_MINUS_SRC_ALPHA);dM=bC(d4,ad,bX);bQ=bC(d4,bS,bf);cV.strokeWeight(1);du=bC(d4,d5,bH);d4.useProgram(du);dV("usingTexture3d",du,"usingTexture",dP);cV.lightFalloff(1,0,0);cV.shininess(1);cV.ambient(255,255,255);cV.specular(0,0,0);cV.emissive(0,0,0);bd=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,bd);d4.bufferData(d4.ARRAY_BUFFER,df,d4.STATIC_DRAW);cI=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,cI);d4.bufferData(d4.ARRAY_BUFFER,de,d4.STATIC_DRAW);di=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,di);d4.bufferData(d4.ARRAY_BUFFER,bE,d4.STATIC_DRAW);aA=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,aA);d4.bufferData(d4.ARRAY_BUFFER,aj,d4.STATIC_DRAW);b1=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,b1);d4.bufferData(d4.ARRAY_BUFFER,ah,d4.STATIC_DRAW);bc=d4.createBuffer();b7=d4.createBuffer();ar=d4.createBuffer();aE=d4.createBuffer();bz=d4.createBuffer();ae=d4.createBuffer();av=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,av);d4.bufferData(d4.ARRAY_BUFFER,new e([0,0,0]),d4.STATIC_DRAW);cG=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,cG);d4.bufferData(d4.ARRAY_BUFFER,new e([1,1,0,-1,1,0,-1,-1,0,1,-1,0]),d4.STATIC_DRAW);aa=d4.createBuffer();d4.bindBuffer(d4.ARRAY_BUFFER,aa);d4.bufferData(d4.ARRAY_BUFFER,new e([0,0,1,0,1,1,0,1]),d4.STATIC_DRAW);P=d4.createBuffer();d4.bindBuffer(d4.ELEMENT_ARRAY_BUFFER,P);d4.bufferData(d4.ELEMENT_ARRAY_BUFFER,new w([0,1,2,2,3,0]),d4.STATIC_DRAW);bT=new aM;cg=new aM;dF=new aM;aQ=new aM;da=new aM;cV.camera();cV.perspective();al=new T;c9=new T;c2=new aM;aN=new aM;aJ=new aM;bw=new aM;cc=new aM;S=new aM;S.set(-1,3,-3,1,3,-6,3,0,-3,3,0,0,1,0,0,0);dp.prototype.size.apply(this,arguments)}}();bO.prototype.ambientLight=dp.prototype.a3DOnlyFunction;by.prototype.ambientLight=function(d7,ea,ef,eg,ec,eb){if(dH===8){throw"can only create "+8+" lights"}var ed=new y(eg,ec,eb);var ee=new aM;ee.scale(1,-1,1);ee.apply(dF.array());ee.mult(ed,ed);var d8=dD(d7,ea,ef,0);var d9=[((d8>>16)&255)/255,((d8&65280)>>>8)/255,(d8&255)/255];d4.useProgram(du);dY("lights.color.3d."+dH,du,"lights"+dH+".color",d9);dY("lights.position.3d."+dH,du,"lights"+dH+".position",ed.array());dV("lights.type.3d."+dH,du,"lights"+dH+".type",0);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.directionalLight=dp.prototype.a3DOnlyFunction;by.prototype.directionalLight=function(d7,ed,ef,ee,ec,eb){if(dH===8){throw"can only create "+8+" lights"}d4.useProgram(du);var eg=new aM;eg.scale(1,-1,1);eg.apply(dF.array());eg=eg.array();var d9=[eg[0]*ee+eg[4]*ec+eg[8]*eb,eg[1]*ee+eg[5]*ec+eg[9]*eb,eg[2]*ee+eg[6]*ec+eg[10]*eb];var d8=dD(d7,ed,ef,0);var ea=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];dY("lights.color.3d."+dH,du,"lights"+dH+".color",ea);dY("lights.position.3d."+dH,du,"lights"+dH+".position",d9);dV("lights.type.3d."+dH,du,"lights"+dH+".type",1);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.lightFalloff=dp.prototype.a3DOnlyFunction;by.prototype.lightFalloff=function(d8,d7,d9){d4.useProgram(du);dY("falloff3d",du,"falloff",[d8,d7,d9])};bO.prototype.lightSpecular=dp.prototype.a3DOnlyFunction;by.prototype.lightSpecular=function(eb,ea,d7){var d8=dD(eb,ea,d7,0);var d9=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];d4.useProgram(du);dY("specular3d",du,"specular",d9)};cV.lights=function(){cV.ambientLight(128,128,128);cV.directionalLight(128,128,128,0,0,-1);cV.lightFalloff(1,0,0);cV.lightSpecular(0,0,0)};bO.prototype.pointLight=dp.prototype.a3DOnlyFunction;by.prototype.pointLight=function(d7,ea,ef,eg,ec,eb){if(dH===8){throw"can only create "+8+" lights"}var ed=new y(eg,ec,eb);var ee=new aM;ee.scale(1,-1,1);ee.apply(dF.array());ee.mult(ed,ed);var d8=dD(d7,ea,ef,0);var d9=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];d4.useProgram(du);dY("lights.color.3d."+dH,du,"lights"+dH+".color",d9);dY("lights.position.3d."+dH,du,"lights"+dH+".position",ed.array());dV("lights.type.3d."+dH,du,"lights"+dH+".type",2);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.noLights=dp.prototype.a3DOnlyFunction;by.prototype.noLights=function(){dH=0;d4.useProgram(du);dV("lightCount3d",du,"lightCount",dH)};bO.prototype.spotLight=dp.prototype.a3DOnlyFunction;by.prototype.spotLight=function(d7,ef,ek,el,ej,eh,eg,ee,ec,eb,ed){if(dH===8){throw"can only create "+8+" lights"}d4.useProgram(du);var ei=new y(el,ej,eh);var em=new aM;em.scale(1,-1,1);em.apply(dF.array());em.mult(ei,ei);em=em.array();var d9=[em[0]*eg+em[4]*ee+em[8]*ec,em[1]*eg+em[5]*ee+em[9]*ec,em[2]*eg+em[6]*ee+em[10]*ec];var d8=dD(d7,ef,ek,0);var ea=[((d8>>16)&255)/255,((d8>>8)&255)/255,(d8&255)/255];dY("lights.color.3d."+dH,du,"lights"+dH+".color",ea);dY("lights.position.3d."+dH,du,"lights"+dH+".position",ei.array());dY("lights.direction.3d."+dH,du,"lights"+dH+".direction",d9);dY("lights.concentration.3d."+dH,du,"lights"+dH+".concentration",ed);dY("lights.angle.3d."+dH,du,"lights"+dH+".angle",eb);dV("lights.type.3d."+dH,du,"lights"+dH+".type",3);dV("lightCount3d",du,"lightCount",++dH)};bO.prototype.beginCamera=function(){throw"beginCamera() is not available in 2D mode"};by.prototype.beginCamera=function(){if(ao){throw"You cannot call beginCamera() again before calling endCamera()"}ao=true;dF=cg;aQ=bT};bO.prototype.endCamera=function(){throw"endCamera() is not available in 2D mode"};by.prototype.endCamera=function(){if(!ao){throw"You cannot call endCamera() before calling beginCamera()"}dF.set(bT);aQ.set(cg);ao=false};cV.camera=function(ei,eh,ef,ed,eb,ea,eq,eo,em){if(ei===r){dj=cV.width/2;dh=cV.height/2;dg=dh/o.tan(cJ/2);ei=dj;eh=dh;ef=dg;ed=dj;eb=dh;ea=0;eq=0;eo=1;em=0}var ec=new y(ei-ed,eh-eb,ef-ea);var ee=new y(eq,eo,em);ec.normalize();var eg=y.cross(ee,ec);ee=y.cross(ec,eg);eg.normalize();ee.normalize();var er=eg.x,ep=eg.y,en=eg.z;var d9=ee.x,d8=ee.y,d7=ee.z;var el=ec.x,ek=ec.y,ej=ec.z;bT.set(er,ep,en,0,d9,d8,d7,0,el,ek,ej,0,0,0,0,1);bT.translate(-ei,-eh,-ef);cg.reset();cg.invApply(er,ep,en,0,d9,d8,d7,0,el,ek,ej,0,0,0,0,1);cg.translate(ei,eh,ef);dF.set(bT);aQ.set(cg)};cV.perspective=function(eb,d9,ec,d8){if(arguments.length===0){dh=ac.height/2;dg=dh/o.tan(cJ/2);aW=dg/10;au=dg*10;b4=cV.width/cV.height;eb=cJ;d9=b4;ec=aW;d8=au}var ed,d7,ee,ea;ed=ec*o.tan(eb/2);d7=-ed;ee=ed*d9;ea=d7*d9;cV.frustum(ea,ee,d7,ed,ec,d8)};bO.prototype.frustum=function(){throw"Processing.js: frustum() is not supported in 2D mode"};by.prototype.frustum=function(ed,d9,d8,ec,eb,d7){ch=true;da=new aM;da.set(2*eb/(d9-ed),0,(d9+ed)/(d9-ed),0,0,2*eb/(ec-d8),(ec+d8)/(ec-d8),0,0,0,-(d7+eb)/(d7-eb),-(2*d7*eb)/(d7-eb),0,0,-1,0);var ea=new aM;ea.set(da);ea.transpose();d4.useProgram(dM);a5("projection2d",dM,"projection",false,ea.array());d4.useProgram(du);a5("projection3d",du,"projection",false,ea.array());d4.useProgram(bQ);a5("uProjectionUS",bQ,"uProjection",false,ea.array())};cV.ortho=function(d8,ej,d7,eh,ee,ed){if(arguments.length===0){d8=0;ej=cV.width;d7=0;eh=cV.height;ee=-10;ed=10}var ei=2/(ej-d8);var eg=2/(eh-d7);var ef=-2/(ed-ee);var ec=-(ej+d8)/(ej-d8);var eb=-(eh+d7)/(eh-d7);var ea=-(ed+ee)/(ed-ee);da=new aM;da.set(ei,0,0,ec,0,eg,0,eb,0,0,ef,ea,0,0,0,1);var d9=new aM;d9.set(da);d9.transpose();d4.useProgram(dM);a5("projection2d",dM,"projection",false,d9.array());d4.useProgram(du);a5("projection3d",du,"projection",false,d9.array());d4.useProgram(bQ);a5("uProjectionUS",bQ,"uProjection",false,d9.array());ch=false};cV.printProjection=function(){da.print()};cV.printCamera=function(){bT.print()};bO.prototype.box=dp.prototype.a3DOnlyFunction;by.prototype.box=function(d9,ec,ee){if(!ec||!ee){ec=ee=d9}var eb=new aM;eb.scale(d9,ec,ee);var d8=new aM;d8.scale(1,-1,1);d8.apply(dF.array());d8.transpose();if(aF){d4.useProgram(du);a5("model3d",du,"model",false,eb.array());a5("view3d",du,"view",false,d8.array());d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",bl);if(dH>0){var ea=new aM;ea.set(d8);var d7=new aM;d7.set(eb);ea.mult(d7);var ed=new aM;ed.set(ea);ed.invert();ed.transpose();a5("normalTransform3d",du,"normalTransform",false,ed.array());db("normal3d",du,"Normal",3,cI)}else{cf("normal3d",du,"Normal")}db("vertex3d",du,"Vertex",3,bd);cf("aColor3d",du,"aColor");cf("aTexture3d",du,"aTexture");d4.drawArrays(d4.TRIANGLES,0,df.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)}if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,eb.array());a5("view2d",dM,"view",false,d8.array());dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,di);cf("aTextureCoord2d",dM,"aTextureCoord");d4.drawArrays(d4.LINES,0,bE.length/3)}};var cC=function(){var d8;cE=[];for(d8=0;d8<bK;d8++){cE.push(0);cE.push(-1);cE.push(0);cE.push(bq[d8]);cE.push(bp[d8]);cE.push(bo[d8])}cE.push(0);cE.push(-1);cE.push(0);cE.push(bq[0]);cE.push(bp[0]);cE.push(bo[0]);var ec,d9,eb;var ea=0;for(d8=2;d8<bJ;d8++){ec=d9=ea;ea+=bK;eb=ea;for(var d7=0;d7<bK;d7++){cE.push(bq[ec]);cE.push(bp[ec]);cE.push(bo[ec++]);cE.push(bq[eb]);cE.push(bp[eb]);cE.push(bo[eb++])}ec=d9;eb=ea;cE.push(bq[ec]);cE.push(bp[ec]);cE.push(bo[ec]);cE.push(bq[eb]);cE.push(bp[eb]);cE.push(bo[eb])}for(d8=0;d8<bK;d8++){eb=ea+d8;cE.push(bq[eb]);cE.push(bp[eb]);cE.push(bo[eb]);cE.push(0);cE.push(1);cE.push(0)}cE.push(bq[ea]);cE.push(bp[ea]);cE.push(bo[ea]);cE.push(0);cE.push(1);cE.push(0);d4.bindBuffer(d4.ARRAY_BUFFER,bc);d4.bufferData(d4.ARRAY_BUFFER,new e(cE),d4.STATIC_DRAW)};cV.sphereDetail=function(d8,ej){var ee;if(arguments.length===1){d8=ej=arguments[0]}if(d8<3){d8=3}if(ej<2){ej=2}if(d8===bK&&ej===bJ){return}var ei=720/d8;var ec=new e(d8);var d9=new e(d8);for(ee=0;ee<d8;ee++){ec[ee]=bi[ee*ei%720|0];d9[ee]=ag[ee*ei%720|0]}var eh=d8*(ej-1)+2;var eg=0;bq=new e(eh);bp=new e(eh);bo=new e(eh);var ef=720*0.5/ej;var eb=ef;for(ee=1;ee<ej;ee++){var ea=ag[eb%720|0];var d7=-bi[eb%720|0];for(var ed=0;ed<d8;ed++){bq[eg]=ec[ed]*ea;bp[eg]=d7;bo[eg++]=d9[ed]*ea}eb+=ef}bK=d8;bJ=ej;cC()};bO.prototype.sphere=dp.prototype.a3DOnlyFunction;by.prototype.sphere=function(){var eb=arguments[0];if(bK<3||bJ<2){cV.sphereDetail(30)}var ea=new aM;ea.scale(eb,eb,eb);var d8=new aM;d8.scale(1,-1,1);d8.apply(dF.array());d8.transpose();if(aF){if(dH>0){var d9=new aM;d9.set(d8);var d7=new aM;d7.set(ea);d9.mult(d7);var ec=new aM;ec.set(d9);ec.invert();ec.transpose();a5("normalTransform3d",du,"normalTransform",false,ec.array());db("normal3d",du,"Normal",3,bc)}else{cf("normal3d",du,"Normal")}d4.useProgram(du);cf("aTexture3d",du,"aTexture");a5("model3d",du,"model",false,ea.array());a5("view3d",du,"view",false,d8.array());db("vertex3d",du,"Vertex",3,bc);cf("aColor3d",du,"aColor");d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",bl);d4.drawArrays(d4.TRIANGLE_STRIP,0,cE.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)}if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,ea.array());a5("view2d",dM,"view",false,d8.array());db("vertex2d",dM,"Vertex",3,bc);cf("aTextureCoord2d",dM,"aTextureCoord");dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);d4.drawArrays(d4.LINE_STRIP,0,cE.length/3)}};cV.modelX=function(ed,ec,eb){var ef=dF.array();var eh=cg.array();var d7=ef[0]*ed+ef[1]*ec+ef[2]*eb+ef[3];var eg=ef[4]*ed+ef[5]*ec+ef[6]*eb+ef[7];var ee=ef[8]*ed+ef[9]*ec+ef[10]*eb+ef[11];var d8=ef[12]*ed+ef[13]*ec+ef[14]*eb+ef[15];var d9=eh[0]*d7+eh[1]*eg+eh[2]*ee+eh[3]*d8;var ea=eh[12]*d7+eh[13]*eg+eh[14]*ee+eh[15]*d8;return ea!==0?d9/ea:d9};cV.modelY=function(ed,ec,eb){var ef=dF.array();var eh=cg.array();var d7=ef[0]*ed+ef[1]*ec+ef[2]*eb+ef[3];var eg=ef[4]*ed+ef[5]*ec+ef[6]*eb+ef[7];var ee=ef[8]*ed+ef[9]*ec+ef[10]*eb+ef[11];var d8=ef[12]*ed+ef[13]*ec+ef[14]*eb+ef[15];var d9=eh[4]*d7+eh[5]*eg+eh[6]*ee+eh[7]*d8;var ea=eh[12]*d7+eh[13]*eg+eh[14]*ee+eh[15]*d8;return ea!==0?d9/ea:d9};cV.modelZ=function(ed,ec,eb){var ef=dF.array();var eh=cg.array();var d7=ef[0]*ed+ef[1]*ec+ef[2]*eb+ef[3];var eg=ef[4]*ed+ef[5]*ec+ef[6]*eb+ef[7];var ee=ef[8]*ed+ef[9]*ec+ef[10]*eb+ef[11];var d9=ef[12]*ed+ef[13]*ec+ef[14]*eb+ef[15];var d8=eh[8]*d7+eh[9]*eg+eh[10]*ee+eh[11]*d9;var ea=eh[12]*d7+eh[13]*eg+eh[14]*ee+eh[15]*d9;return ea!==0?d8/ea:d8};bO.prototype.ambient=dp.prototype.a3DOnlyFunction;by.prototype.ambient=function(ea,d9,d8){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);var d7=cV.color(ea,d9,d8);dY("mat_ambient3d",du,"mat_ambient",cV.color.toGLArray(d7).slice(0,3))};bO.prototype.emissive=dp.prototype.a3DOnlyFunction;by.prototype.emissive=function(ea,d9,d8){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);var d7=cV.color(ea,d9,d8);dY("mat_emissive3d",du,"mat_emissive",cV.color.toGLArray(d7).slice(0,3))};bO.prototype.shininess=dp.prototype.a3DOnlyFunction;by.prototype.shininess=function(d7){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);dY("shininess3d",du,"shininess",d7)};bO.prototype.specular=dp.prototype.a3DOnlyFunction;by.prototype.specular=function(ea,d9,d8){d4.useProgram(du);dV("usingMat3d",du,"usingMat",true);var d7=cV.color(ea,d9,d8);dY("mat_specular3d",du,"mat_specular",cV.color.toGLArray(d7).slice(0,3))};cV.screenX=function(ee,ed,ec){var eg=dF.array();if(eg.length===16){var d7=eg[0]*ee+eg[1]*ed+eg[2]*ec+eg[3];var eh=eg[4]*ee+eg[5]*ed+eg[6]*ec+eg[7];var ef=eg[8]*ee+eg[9]*ed+eg[10]*ec+eg[11];var d8=eg[12]*ee+eg[13]*ed+eg[14]*ec+eg[15];var eb=da.array();var d9=eb[0]*d7+eb[1]*eh+eb[2]*ef+eb[3]*d8;var ea=eb[12]*d7+eb[13]*eh+eb[14]*ef+eb[15]*d8;if(ea!==0){d9/=ea}return cV.width*(1+d9)/2}return dF.multX(ee,ed)};cV.screenY=function az(ee,ed,ec){var eg=dF.array();if(eg.length===16){var d7=eg[0]*ee+eg[1]*ed+eg[2]*ec+eg[3];var eh=eg[4]*ee+eg[5]*ed+eg[6]*ec+eg[7];var ef=eg[8]*ee+eg[9]*ed+eg[10]*ec+eg[11];var d8=eg[12]*ee+eg[13]*ed+eg[14]*ec+eg[15];var eb=da.array();var d9=eb[4]*d7+eb[5]*eh+eb[6]*ef+eb[7]*d8;var ea=eb[12]*d7+eb[13]*eh+eb[14]*ef+eb[15]*d8;if(ea!==0){d9/=ea}return cV.height*(1+d9)/2}return dF.multY(ee,ed)};cV.screenZ=function ax(ee,ed,ec){var eg=dF.array();if(eg.length!==16){return 0}var eb=da.array();var d7=eg[0]*ee+eg[1]*ed+eg[2]*ec+eg[3];var eh=eg[4]*ee+eg[5]*ed+eg[6]*ec+eg[7];var ef=eg[8]*ee+eg[9]*ed+eg[10]*ec+eg[11];var d9=eg[12]*ee+eg[13]*ed+eg[14]*ec+eg[15];var d8=eb[8]*d7+eb[9]*eh+eb[10]*ef+eb[11]*d9;var ea=eb[12]*d7+eb[13]*eh+eb[14]*ef+eb[15]*d9;if(ea!==0){d8/=ea}return(d8+1)/2};dp.prototype.fill=function(){var d7=cV.color(arguments[0],arguments[1],arguments[2],arguments[3]);if(d7===aX&&aF){return}aF=true;aX=d7};bO.prototype.fill=function(){dp.prototype.fill.apply(this,arguments);ap=true};by.prototype.fill=function(){dp.prototype.fill.apply(this,arguments);bl=cV.color.toGLArray(aX)};function bk(){if(aF){if(ap){d4.fillStyle=cV.color.toString(aX);ap=false}d4.fill()}}cV.noFill=function(){aF=false};dp.prototype.stroke=function(){var d7=cV.color(arguments[0],arguments[1],arguments[2],arguments[3]);if(d7===cu&&cd){return}cd=true;cu=d7};bO.prototype.stroke=function(){dp.prototype.stroke.apply(this,arguments);b2=true};by.prototype.stroke=function(){dp.prototype.stroke.apply(this,arguments);cZ=cV.color.toGLArray(cu)};function dc(){if(cd){if(b2){d4.strokeStyle=cV.color.toString(cu);b2=false}d4.stroke()}}cV.noStroke=function(){cd=false};dp.prototype.strokeWeight=function(d7){dS=d7};bO.prototype.strokeWeight=function(d7){dp.prototype.strokeWeight.apply(this,arguments);d4.lineWidth=d7};by.prototype.strokeWeight=function(d7){dp.prototype.strokeWeight.apply(this,arguments);d4.useProgram(dM);dY("pointSize2d",dM,"pointSize",d7);d4.useProgram(bQ);dY("pointSizeUnlitShape",bQ,"pointSize",d7);d4.lineWidth(d7)};cV.strokeCap=function(d7){dU.$ensureContext().lineCap=d7};cV.strokeJoin=function(d7){dU.$ensureContext().lineJoin=d7};bO.prototype.smooth=function(){dK=true;var d7=ac.style;d7.setProperty("image-rendering","optimizeQuality","important");d7.setProperty("-ms-interpolation-mode","bicubic","important");if(d4.hasOwnProperty("mozImageSmoothingEnabled")){d4.mozImageSmoothingEnabled=true}};by.prototype.smooth=E;bO.prototype.noSmooth=function(){dK=false;var d7=ac.style;d7.setProperty("image-rendering","optimizeSpeed","important");d7.setProperty("image-rendering","-moz-crisp-edges","important");d7.setProperty("image-rendering","-webkit-optimize-contrast","important");d7.setProperty("image-rendering","optimize-contrast","important");d7.setProperty("-ms-interpolation-mode","nearest-neighbor","important");if(d4.hasOwnProperty("mozImageSmoothingEnabled")){d4.mozImageSmoothingEnabled=false}};by.prototype.noSmooth=E;bO.prototype.point=function(d7,d8){if(!cd){return}d7=o.round(d7);d8=o.round(d8);d4.fillStyle=cV.color.toString(cu);ap=true;if(dS>1){d4.beginPath();d4.arc(d7,d8,dS/2,0,6.283185307179586,false);d4.fill()}else{d4.fillRect(d7,d8,1,1)}};by.prototype.point=function(d7,eb,ea){var d9=new aM;d9.translate(d7,eb,ea||0);d9.transpose();var d8=new aM;d8.scale(1,-1,1);d8.apply(dF.array());d8.transpose();d4.useProgram(dM);a5("model2d",dM,"model",false,d9.array());a5("view2d",dM,"view",false,d8.array());if(dS>0&&cd){dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,av);cf("aTextureCoord2d",dM,"aTextureCoord");d4.drawArrays(d4.POINTS,0,1)}};cV.beginShape=function(d7){dN=d7;d2=[];a7=[]};bO.prototype.vertex=function(d7,eb,ea,d9){var d8=[];if(dr){dr=false}d8.isVert=true;d8[0]=d7;d8[1]=eb;d8[2]=0;d8[3]=ea;d8[4]=d9;d8[5]=aX;d8[6]=cu;a7.push(d8)};by.prototype.vertex=function(d7,ec,eb,ea,d9){var d8=[];if(dr){dr=false}d8.isVert=true;if(d9===r&&dP){d9=ea;ea=eb;eb=0}if(ea!==r&&d9!==r){if(d0===2){ea/=cr.width;d9/=cr.height}ea=ea>1?1:ea;ea=ea<0?0:ea;d9=d9>1?1:d9;d9=d9<0?0:d9}d8[0]=d7;d8[1]=ec;d8[2]=eb||0;d8[3]=ea||0;d8[4]=d9||0;d8[5]=bl[0];d8[6]=bl[1];d8[7]=bl[2];d8[8]=bl[3];d8[9]=cZ[0];d8[10]=cZ[1];d8[11]=cZ[2];d8[12]=cZ[3];d8[13]=a4;d8[14]=a3;d8[15]=a2;a7.push(d8)};var dX=function(d9,d8){var d7=new 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aM;d7.scale(1,-1,1);d7.apply(dF.array());d7.transpose();d4.useProgram(du);a5("model3d",du,"model",false,[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);a5("view3d",du,"view",false,d7.array());d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",[-1,0,0,0]);db("vertex3d",du,"Vertex",3,ar);d4.bufferData(d4.ARRAY_BUFFER,new e(ec),d4.STREAM_DRAW);if(dP&&bb!==null){bt(ea)}db("aColor3d",du,"aColor",4,aE);d4.bufferData(d4.ARRAY_BUFFER,new e(ea),d4.STREAM_DRAW);cf("normal3d",du,"Normal");if(dP){dV("usingTexture3d",du,"usingTexture",dP);db("aTexture3d",du,"aTexture",2,ae);d4.bufferData(d4.ARRAY_BUFFER,new e(d9),d4.STREAM_DRAW)}d4.drawArrays(d8,0,ec.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)};function cR(){bk();dc();d4.closePath()}bO.prototype.endShape=function(ee){if(a7.length===0){return}var ea=ee===2;if(ea){a7.push(a7[0])}var d9=[];var d7=[];var eg=[];var ej=[];var ec=[];var ef;dr=true;var ed,eb,d8;var ei=a7.length;for(ed=0;ed<ei;ed++){ef=a7[ed];for(eb=0;eb<3;eb++){d7.push(ef[eb])}}for(ed=0;ed<ei;ed++){ef=a7[ed];for(eb=5;eb<9;eb++){eg.push(ef[eb])}}for(ed=0;ed<ei;ed++){ef=a7[ed];for(eb=9;eb<13;eb++){ej.push(ef[eb])}}for(ed=0;ed<ei;ed++){ef=a7[ed];ec.push(ef[3]);ec.push(ef[4])}if(dL&&(dN===20||dN===r)){if(ei>3){var 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eb=0;eb<6&&ec;eb++){ec=ee[eb]===ea[eb]}if(ec){if(d8===d7){if(ef>ed){d9=ef;ef=ed;ed=d9}ed++;if(dS%2===1){d4.translate(0.5,0)}}else{if(ef===ed){if(d8>d7){d9=d8;d8=d7;d7=d9}d7++;if(dS%2===1){d4.translate(0,0.5)}}}if(dS===1){eg=d4.lineCap;d4.lineCap="butt"}}d4.beginPath();d4.moveTo(d8||0,ef||0);d4.lineTo(d7||0,ed||0);dc();if(ec){if(d8===d7&&dS%2===1){d4.translate(-0.5,0)}else{if(ef===ed&&dS%2===1){d4.translate(0,-0.5)}}if(dS===1){d4.lineCap=eg}}};by.prototype.line=function(d9,ec,ee,d8,ea,ed){if(ea===r||ed===r){ed=0;ea=d8;d8=ee;ee=0}if(d9===d8&&ec===ea&&ee===ed){cV.point(d9,ec,ee);return}var eb=[d9,ec,ee,d8,ea,ed];var d7=new aM;d7.scale(1,-1,1);d7.apply(dF.array());d7.transpose();if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]);a5("view2d",dM,"view",false,d7.array());dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,b7);cf("aTextureCoord2d",dM,"aTextureCoord");d4.bufferData(d4.ARRAY_BUFFER,new e(eb),d4.STREAM_DRAW);d4.drawArrays(d4.LINES,0,2)}};bO.prototype.bezier=function(){if(arguments.length!==8){throw"You must use 8 parameters for bezier() in 2D mode"}cV.beginShape();cV.vertex(arguments[0],arguments[1]);cV.bezierVertex(arguments[2],arguments[3],arguments[4],arguments[5],arguments[6],arguments[7]);cV.endShape()};by.prototype.bezier=function(){if(arguments.length!==12){throw"You must use 12 parameters for bezier() in 3D mode"}cV.beginShape();cV.vertex(arguments[0],arguments[1],arguments[2]);cV.bezierVertex(arguments[3],arguments[4],arguments[5],arguments[6],arguments[7],arguments[8],arguments[9],arguments[10],arguments[11]);cV.endShape()};cV.bezierDetail=function(d7){cx=d7};cV.bezierPoint=function(d8,d7,eb,ea,d9){return(1-d9)*(1-d9)*(1-d9)*d8+3*(1-d9)*(1-d9)*d9*d7+3*(1-d9)*d9*d9*eb+d9*d9*d9*ea};cV.bezierTangent=function(d8,d7,eb,ea,d9){return 3*d9*d9*(-d8+3*d7-3*eb+ea)+6*d9*(d8-2*d7+eb)+3*(-d8+d7)};cV.curvePoint=function(d8,d7,eb,ea,d9){return 0.5*(2*d7+(-d8+eb)*d9+(2*d8-5*d7+4*eb-ea)*d9*d9+(-d8+3*d7-3*eb+ea)*d9*d9*d9)};cV.curveTangent=function(d8,d7,eb,ea,d9){return 0.5*(-d8+eb+2*(2*d8-5*d7+4*eb-ea)*d9+3*(-d8+3*d7-3*eb+ea)*d9*d9)};cV.triangle=function(ea,ec,d8,eb,d7,d9){cV.beginShape(9);cV.vertex(ea,ec,0);cV.vertex(d8,eb,0);cV.vertex(d7,d9,0);cV.endShape()};cV.quad=function(ec,ee,ea,ed,d8,eb,d7,d9){cV.beginShape(16);cV.vertex(ec,ee,0);cV.vertex(ea,ed,0);cV.vertex(d8,eb,0);cV.vertex(d7,d9,0);cV.endShape()};var bL=function(ed,ec,d7,ee,eg,eb,ef,d8){if(d8===r){eb=eg;ef=eg;d8=eg}var d9=d7/2,ea=ee/2;if(eg>d9||eg>ea){eg=o.min(d9,ea)}if(eb>d9||eb>ea){eb=o.min(d9,ea)}if(ef>d9||ef>ea){ef=o.min(d9,ea)}if(d8>d9||d8>ea){d8=o.min(d9,ea)}if(!aF||cd){d4.translate(0.5,0.5)}d4.beginPath();d4.moveTo(ed+eg,ec);d4.lineTo(ed+d7-eb,ec);d4.quadraticCurveTo(ed+d7,ec,ed+d7,ec+eb);d4.lineTo(ed+d7,ec+ee-ef);d4.quadraticCurveTo(ed+d7,ec+ee,ed+d7-ef,ec+ee);d4.lineTo(ed+d8,ec+ee);d4.quadraticCurveTo(ed,ec+ee,ed,ec+ee-d8);d4.lineTo(ed,ec+eg);d4.quadraticCurveTo(ed,ec,ed+eg,ec);if(!aF||cd){d4.translate(-0.5,-0.5)}bk();dc()};bO.prototype.rect=function(d8,ee,eb,d7,d9,ec,ea,ed){if(!eb&&!d7){return}if(bI===1){eb-=d8;d7-=ee}else{if(bI===2){eb*=2;d7*=2;d8-=eb/2;ee-=d7/2}else{if(bI===3){d8-=eb/2;ee-=d7/2}}}d8=o.round(d8);ee=o.round(ee);eb=o.round(eb);d7=o.round(d7);if(d9!==r){bL(d8,ee,eb,d7,d9,ec,ea,ed);return}if(cd&&dS%2===1){d4.translate(0.5,0.5)}d4.beginPath();d4.rect(d8,ee,eb,d7);bk();dc();if(cd&&dS%2===1){d4.translate(-0.5,-0.5)}};by.prototype.rect=function(ef,ee,d7,eh,ej,ec,ei,d8){if(ej!==r){throw"rect() with rounded corners is not supported in 3D mode"}if(bI===1){d7-=ef;eh-=ee}else{if(bI===2){d7*=2;eh*=2;ef-=d7/2;ee-=eh/2}else{if(bI===3){ef-=d7/2;ee-=eh/2}}}var eb=new aM;eb.translate(ef,ee,0);eb.scale(d7,eh,1);eb.transpose();var ed=new aM;ed.scale(1,-1,1);ed.apply(dF.array());ed.transpose();if(dS>0&&cd){d4.useProgram(dM);a5("model2d",dM,"model",false,eb.array());a5("view2d",dM,"view",false,ed.array());dY("color2d",dM,"color",cZ);dV("picktype2d",dM,"picktype",0);db("vertex2d",dM,"Vertex",3,aA);cf("aTextureCoord2d",dM,"aTextureCoord");d4.drawArrays(d4.LINE_LOOP,0,aj.length/3)}if(aF){d4.useProgram(du);a5("model3d",du,"model",false,eb.array());a5("view3d",du,"view",false,ed.array());d4.enable(d4.POLYGON_OFFSET_FILL);d4.polygonOffset(1,1);dY("color3d",du,"color",bl);if(dH>0){var eg=new aM;eg.set(ed);var d9=new aM;d9.set(eb);eg.mult(d9);var ea=new aM;ea.set(eg);ea.invert();ea.transpose();a5("normalTransform3d",du,"normalTransform",false,ea.array());db("normal3d",du,"Normal",3,b1)}else{cf("normal3d",du,"Normal")}db("vertex3d",du,"Vertex",3,aA);d4.drawArrays(d4.TRIANGLE_FAN,0,aj.length/3);d4.disable(d4.POLYGON_OFFSET_FILL)}};bO.prototype.ellipse=function(ed,ec,d8,ef){ed=ed||0;ec=ec||0;if(d8<=0&&ef<=0){return}if(cM===2){d8*=2;ef*=2}else{if(cM===1){d8=d8-ed;ef=ef-ec;ed+=d8/2;ec+=ef/2}else{if(cM===0){ed+=d8/2;ec+=ef/2}}}if(d8===ef){d4.beginPath();d4.arc(ed,ec,d8/2,0,6.283185307179586,false);bk();dc()}else{var ee=d8/2,eb=ef/2,d7=0.5522847498307933,ea=d7*ee,d9=d7*eb;cV.beginShape();cV.vertex(ed+ee,ec);cV.bezierVertex(ed+ee,ec-d9,ed+ea,ec-eb,ed,ec-eb);cV.bezierVertex(ed-ea,ec-eb,ed-ee,ec-d9,ed-ee,ec);cV.bezierVertex(ed-ee,ec+d9,ed-ea,ec+eb,ed,ec+eb);cV.bezierVertex(ed+ea,ec+eb,ed+ee,ec+d9,ed+ee,ec);cV.endShape()}};by.prototype.ellipse=function(ek,ej,d9,em){ek=ek||0;ej=ej||0;if(d9<=0&&em<=0){return}if(cM===2){d9*=2;em*=2}else{if(cM===1){d9=d9-ek;em=em-ej;ek+=d9/2;ej+=em/2}else{if(cM===0){ek+=d9/2;ej+=em/2}}}var el=d9/2,eg=em/2,d7=0.5522847498307933,eb=d7*el,ea=d7*eg;cV.beginShape();cV.vertex(ek+el,ej);cV.bezierVertex(ek+el,ej-ea,0,ek+eb,ej-eg,0,ek,ej-eg,0);cV.bezierVertex(ek-eb,ej-eg,0,ek-el,ej-ea,0,ek-el,ej,0);cV.bezierVertex(ek-el,ej+ea,0,ek-eb,ej+eg,0,ek,ej+eg,0);cV.bezierVertex(ek+eb,ej+eg,0,ek+el,ej+ea,0,ek+el,ej,0);cV.endShape();if(aF){var ec=0,eh=0,ee,ed;for(ee=0;ee<a7.length;ee++){ec+=a7[ee][0];eh+=a7[ee][1]}ec/=a7.length;eh/=a7.length;var ef=[],d8=[],ei=[];ef[0]=ec;ef[1]=eh;ef[2]=0;ef[3]=0;ef[4]=0;ef[5]=bl[0];ef[6]=bl[1];ef[7]=bl[2];ef[8]=bl[3];ef[9]=cZ[0];ef[10]=cZ[1];ef[11]=cZ[2];ef[12]=cZ[3];ef[13]=a4;ef[14]=a3;ef[15]=a2;a7.unshift(ef);for(ee=0;ee<a7.length;ee++){for(ed=0;ed<3;ed++){d8.push(a7[ee][ed])}for(ed=5;ed<9;ed++){ei.push(a7[ee][ed])}}dk(d8,"TRIANGLE_FAN",ei)}};cV.normal=function(d7,d9,d8){if(arguments.length!==3||!(typeof d7==="number"&&typeof d9==="number"&&typeof d8==="number")){throw"normal() requires three numeric arguments."}a4=d7;a3=d9;a2=d8;if(dN!==0){if(aY===0){aY=1}else{if(aY===1){aY=2}}}};cV.save=function(d8,d7){if(d7!==r){return B.open(d7.toDataURL(),"_blank")}return B.open(cV.externals.canvas.toDataURL(),"_blank")};var cv=0;cV.saveFrame=function(d7){if(d7===r){d7="screen-####.png"}var d8=d7.replace(/#+/,function(ea){var d9=""+cv++;while(d9.length<ea.length){d9="0"+d9}return d9});cV.save(d8)};var cb=d.createElement("canvas").getContext("2d");var V=[r,r,r];function bv(ee,d8,ed){var ea=V.shift();if(ea===r){ea={};ea.canvas=d.createElement("canvas");ea.context=ea.canvas.getContext("2d")}V.push(ea);var d9=ea.canvas,eb=ea.context,ec=d8||ee.width,d7=ed||ee.height;d9.width=ec;d9.height=d7;if(!ee){eb.clearRect(0,0,ec,d7)}else{if("data" in ee){eb.putImageData(ee,0,0)}else{eb.clearRect(0,0,ec,d7);eb.drawImage(ee,0,0,ec,d7)}}return ea}function bZ(d7){return{getLength:function(d8){return function(){if(d8.isRemote){throw"Image is loaded remotely. Cannot get length."}else{return d8.imageData.data.length?d8.imageData.data.length/4:0}}}(d7),getPixel:function(d8){return function(d9){var eb=d9*4,ea=d8.imageData.data;if(d8.isRemote){throw"Image is loaded remotely. Cannot get pixels."}return(ea[eb+3]&255)<<24|(ea[eb]&255)<<16|(ea[eb+1]&255)<<8|ea[eb+2]&255}}(d7),setPixel:function(d8){return function(d9,ec){var eb=d9*4,ea=d8.imageData.data;if(d8.isRemote){throw"Image is loaded remotely. Cannot set pixel."}ea[eb+0]=(ec>>16)&255;ea[eb+1]=(ec>>8)&255;ea[eb+2]=ec&255;ea[eb+3]=(ec>>24)&255;d8.__isDirty=true}}(d7),toArray:function(d8){return function(){var d9=[],ec=d8.imageData.data,eb=d8.width*d8.height;if(d8.isRemote){throw"Image is loaded remotely. Cannot get pixels."}for(var ea=0,ed=0;ea<eb;ea++,ed+=4){d9.push((ec[ed+3]&255)<<24|(ec[ed]&255)<<16|(ec[ed+1]&255)<<8|ec[ed+2]&255)}return d9}}(d7),set:function(d8){return function(d9){var ed,ec,ee;if(this.isRemote){throw"Image is loaded remotely. Cannot set pixels."}ec=d8.imageData.data;for(var ea=0,eb=d9.length;ea<eb;ea++){ee=d9[ea];ed=ea*4;ec[ed+0]=(ee>>16)&255;ec[ed+1]=(ee>>8)&255;ec[ed+2]=ee&255;ec[ed+3]=(ee>>24)&255}d8.__isDirty=true}}(d7)}}var cF=function(ea,ed,eb){this.__isDirty=false;if(ea instanceof HTMLImageElement){this.fromHTMLImageData(ea)}else{if(ed||eb){this.width=ea||1;this.height=ed||1;var d8=this.sourceImg=d.createElement("canvas");d8.width=this.width;d8.height=this.height;var ee=this.imageData=d8.getContext("2d").createImageData(this.width,this.height);this.format=eb===2||eb===4?eb:1;if(this.format===1){for(var d9=3,ec=this.imageData.data,d7=ec.length;d9<d7;d9+=4){ec[d9]=255}}this.__isDirty=true;this.updatePixels()}else{this.width=0;this.height=0;this.imageData=cb.createImageData(1,1);this.format=2}}this.pixels=bZ(this)};cF.prototype={__isPImage:true,updatePixels:function(){var d7=this.sourceImg;if(d7&&d7 instanceof HTMLCanvasElement&&this.__isDirty){d7.getContext("2d").putImageData(this.imageData,0,0)}this.__isDirty=false},fromHTMLImageData:function(d7){var d8=bv(d7);try{var ea=d8.context.getImageData(0,0,d7.width,d7.height);this.fromImageData(ea)}catch(d9){if(d7.width&&d7.height){this.isRemote=true;this.width=d7.width;this.height=d7.height}}this.sourceImg=d7},get:function(d7,ea,d8,d9){if(!arguments.length){return cV.get(this)}if(arguments.length===2){return cV.get(d7,ea,this)}if(arguments.length===4){return cV.get(d7,ea,d8,d9,this)}},set:function(d7,d9,d8){cV.set(d7,d9,d8,this);this.__isDirty=true},blend:function(ef,eb,ea,d8,ed,eg,ee,ec,d7,d9){if(arguments.length===9){cV.blend(this,ef,eb,ea,d8,ed,eg,ee,ec,d7,this)}else{if(arguments.length===10){cV.blend(ef,eb,ea,d8,ed,eg,ee,ec,d7,d9,this)}}delete this.sourceImg},copy:function(ee,eb,ea,d9,d8,ef,ed,ec,d7){if(arguments.length===8){cV.blend(this,ee,eb,ea,d9,d8,ef,ed,ec,0,this)}else{if(arguments.length===9){cV.blend(ee,eb,ea,d9,d8,ef,ed,ec,d7,0,this)}}delete this.sourceImg},filter:function(d8,d7){if(arguments.length===2){cV.filter(d8,d7,this)}else{if(arguments.length===1){cV.filter(d8,null,this)}}delete this.sourceImg},save:function(d7){cV.save(d7,this)},resize:function(d7,d9){if(this.isRemote){throw"Image is loaded remotely. Cannot resize."}if(this.width!==0||this.height!==0){if(d7===0&&d9!==0){d7=o.floor(this.width/this.height*d9)}else{if(d9===0&&d7!==0){d9=o.floor(this.height/this.width*d7)}}var d8=bv(this.imageData).canvas;var ea=bv(d8,d7,d9).context.getImageData(0,0,d7,d9);this.fromImageData(ea)}},mask:function(d7){var ea=this.toImageData(),d9,d8;if(d7 instanceof cF||d7.__isPImage){if(d7.width===this.width&&d7.height===this.height){d7=d7.toImageData();for(d9=2,d8=this.width*this.height*4;d9<d8;d9+=4){ea.data[d9+1]=d7.data[d9]}}else{throw"mask must have the same dimensions as PImage."}}else{if(d7 instanceof Array){if(this.width*this.height===d7.length){for(d9=0,d8=d7.length;d9<d8;++d9){ea.data[d9*4+3]=d7[d9]}}else{throw"mask array must be the same length as PImage pixels array."}}}this.fromImageData(ea)},loadPixels:E,toImageData:function(){if(this.isRemote){return this.sourceImg}if(!this.__isDirty){return this.imageData}var d7=bv(this.imageData);return d7.context.getImageData(0,0,this.width,this.height)},toDataURL:function(){if(this.isRemote){throw"Image is loaded remotely. Cannot create dataURI."}var d7=bv(this.imageData);return d7.canvas.toDataURL()},fromImageData:function(eb){var d8=eb.width,ea=eb.height,d9=d.createElement("canvas"),d7=d9.getContext("2d");this.width=d9.width=d8;this.height=d9.height=ea;d7.putImageData(eb,0,0);this.format=2;this.imageData=eb;this.sourceImg=d9}};cV.PImage=cF;cV.createImage=function(d7,d8,d9){return new cF(d7,d8,d9)};cV.loadImage=function(d8,d9,eb){if(d9){d8=d8+"."+d9}var ea;if(cP.imageCache.images[d8]){ea=new cF(cP.imageCache.images[d8]);ea.loaded=true;return ea}ea=new cF;var d7=d.createElement("img");ea.sourceImg=d7;d7.onload=function(ef,ed,ec){var eg=ef;var ee=ed;var eh=ec;return function(){ee.fromHTMLImageData(eg);ee.loaded=true;if(eh){eh()}}}(d7,ea,eb);d7.src=d8;return ea};cV.requestImage=cV.loadImage;function c8(d7,ea){var d8;if(d7>=cV.width||d7<0||ea<0||ea>=cV.height){return 0}if(dR){var d9=((0|d7)+cV.width*(0|ea))*4;d8=cV.imageData.data;return(d8[d9+3]&255)<<24|(d8[d9]&255)<<16|(d8[d9+1]&255)<<8|d8[d9+2]&255}d8=cV.toImageData(0|d7,0|ea,1,1).data;return(d8[3]&255)<<24|(d8[0]&255)<<16|(d8[1]&255)<<8|d8[2]&255}function c7(d7,eb,d8){if(d8.isRemote){throw"Image is loaded remotely. Cannot get x,y."}var ea=eb*d8.width*4+d7*4,d9=d8.imageData.data;return(d9[ea+3]&255)<<24|(d9[ea]&255)<<16|(d9[ea+1]&255)<<8|d9[ea+2]&255}function c5(d7,eb,d8,d9){var ea=new cF(d8,d9,2);ea.fromImageData(cV.toImageData(d7,eb,d8,d9));return ea}function c4(ec,eb,ed,ei,eo){if(eo.isRemote){throw"Image is loaded remotely. Cannot get x,y,w,h."}var em=new cF(ed,ei,2),d9=em.imageData.data,ea=eo.width,ej=eo.height,el=eo.imageData.data;var d7=o.max(0,-eb),d8=o.max(0,-ec),ee=o.min(ei,ej-eb),ef=o.min(ed,ea-ec);for(var eh=d7;eh<ee;++eh){var ek=((eb+eh)*ea+(ec+d8))*4;var en=(eh*ed+d8)*4;for(var eg=d8;eg<ef;++eg){d9[en++]=el[ek++];d9[en++]=el[ek++];d9[en++]=el[ek++];d9[en++]=el[ek++]}}em.__isDirty=true;return em}cV.get=function(d7,eb,d8,ea,d9){if(d9!==undefined){return c4(d7,eb,d8,ea,d9)}if(ea!==undefined){return c5(d7,eb,d8,ea)}if(d8!==undefined){return c7(d7,eb,d8)}if(eb!==undefined){return c8(d7,eb)}if(d7!==undefined){return c4(0,0,d7.width,d7.height,d7)}return c5(0,0,cV.width,cV.height)};cV.createGraphics=function(d7,d9,d8){var ea=new D;ea.size(d7,d9,d8);return ea};function R(){if(dR){d4=ai;dR=false;cV.updatePixels()}}function cp(){function d8(ec,ea){function eb(){R();d4[ea].apply(d4,arguments)}ec[ea]=eb}function d7(ed,eb){function ea(){R();return d4[eb]}function ec(ee){R();d4[eb]=ee}cV.defineProperty(ed,eb,{get:ea,set:ec})}for(var d9 in d4){if(typeof d4[d9]==="function"){d8(this,d9)}else{d7(this,d9)}}}function cB(){if(dR){return}cV.loadPixels();if(cm===null){ai=d4;cm=new cp}dR=true;d4=cm;dZ=0}function bu(d7,d9,d8){if(d7<cV.width&&d7>=0&&d9>=0&&d9<cV.height){cB();cV.pixels.setPixel((0|d7)+cV.width*(0|d9),d8);if(++dZ>bY){R()}}}function bs(d7,ed,ea,d8){if(d8.isRemote){throw"Image is loaded remotely. Cannot set x,y."}var ec=cV.color.toArray(ea);var eb=ed*d8.width*4+d7*4;var d9=d8.imageData.data;d9[eb]=ec[0];d9[eb+1]=ec[1];d9[eb+2]=ec[2];d9[eb+3]=ec[3]}cV.set=function(d7,ec,ea,d9){var d8,eb;if(arguments.length===3){if(typeof ea==="number"){bu(d7,ec,ea)}else{if(ea instanceof cF||ea.__isPImage){cV.image(ea,d7,ec)}}}else{if(arguments.length===4){bs(d7,ec,ea,d9)}}};cV.imageData={};cV.pixels={getLength:function(){return cV.imageData.data.length?cV.imageData.data.length/4:0},getPixel:function(d7){var d9=d7*4,d8=cV.imageData.data;return d8[d9+3]<<24&4278190080|d8[d9+0]<<16&16711680|d8[d9+1]<<8&65280|d8[d9+2]&255},setPixel:function(d7,ea){var d9=d7*4,d8=cV.imageData.data;d8[d9+0]=(ea&16711680)>>>16;d8[d9+1]=(ea&65280)>>>8;d8[d9+2]=ea&255;d8[d9+3]=(ea&4278190080)>>>24},toArray:function(){var d7=[],d9=cV.imageData.width*cV.imageData.height,ea=cV.imageData.data;for(var d8=0,eb=0;d8<d9;d8++,eb+=4){d7.push(ea[eb+3]<<24&4278190080|ea[eb+0]<<16&16711680|ea[eb+1]<<8&65280|ea[eb+2]&255)}return d7},set:function(d7){for(var d8=0,d9=d7.length;d8<d9;d8++){this.setPixel(d8,d7[d8])}}};cV.loadPixels=function(){cV.imageData=dU.$ensureContext().getImageData(0,0,cV.width,cV.height)};cV.updatePixels=function(){if(cV.imageData){dU.$ensureContext().putImageData(cV.imageData,0,0)}};cV.hint=function(d8){var d7=dU.$ensureContext();if(d8===4){d7.disable(d7.DEPTH_TEST);d7.depthMask(false);d7.clear(d7.DEPTH_BUFFER_BIT)}else{if(d8===-4){d7.enable(d7.DEPTH_TEST);d7.depthMask(true)}}};var bB=function(ea,d9,d8,d7){var eb;if(ea instanceof cF||ea.__isPImage){eb=ea;if(!eb.loaded){throw"Error using image in background(): PImage not loaded."}if(eb.width!==cV.width||eb.height!==cV.height){throw"Background image must be the same dimensions as the canvas."}}else{eb=cV.color(ea,d9,d8,d7)}a0=eb};bO.prototype.background=function(ea,d9,d8,d7){if(ea!==r){bB(ea,d9,d8,d7)}if(a0 instanceof cF||a0.__isPImage){aC();d4.setTransform(1,0,0,1,0,0);cV.image(a0,0,0);cO()}else{aC();d4.setTransform(1,0,0,1,0,0);if(cV.alpha(a0)!==bR){d4.clearRect(0,0,cV.width,cV.height)}d4.fillStyle=cV.color.toString(a0);d4.fillRect(0,0,cV.width,cV.height);ap=true;cO()}};by.prototype.background=function(ea,d9,d8,d7){if(arguments.length>0){bB(ea,d9,d8,d7)}var eb=cV.color.toGLArray(a0);d4.clearColor(eb[0],eb[1],eb[2],eb[3]);d4.clear(d4.COLOR_BUFFER_BIT|d4.DEPTH_BUFFER_BIT)};bO.prototype.image=function(ea,ef,ed,eg,eb){ef=o.round(ef);ed=o.round(ed);if(ea.width>0){var eh=eg||ea.width;var ee=eb||ea.height;var d7=bh(ef||0,ed||0,eg||ea.width,eb||ea.height,arguments.length<4);var ec=!!ea.sourceImg&&bb===null;if(ec){var d8=ea.sourceImg;if(ea.__isDirty){ea.updatePixels()}d4.drawImage(d8,0,0,d8.width,d8.height,d7.x,d7.y,d7.w,d7.h)}else{var d9=ea.toImageData();if(bb!==null){bb(d9);ea.__isDirty=true}d4.drawImage(bv(d9).canvas,0,0,ea.width,ea.height,d7.x,d7.y,d7.w,d7.h)}}};by.prototype.image=function(d9,d7,eb,d8,ea){if(d9.width>0){d7=o.round(d7);eb=o.round(eb);d8=d8||d9.width;ea=ea||d9.height;cV.beginShape(cV.QUADS);cV.texture(d9);cV.vertex(d7,eb,0,0,0);cV.vertex(d7,eb+ea,0,0,ea);cV.vertex(d7+d8,eb+ea,0,d8,ea);cV.vertex(d7+d8,eb,0,d8,0);cV.endShape()}};cV.tint=function(ea,d9,d7,ef){var ec=cV.color(ea,d9,d7,ef);var d8=cV.red(ec)/bG;var eb=cV.green(ec)/bF;var ed=cV.blue(ec)/bD;var ee=cV.alpha(ec)/bR;bb=function(ej){var ei=ej.data,eh=4*ej.width*ej.height;for(var eg=0;eg<eh;){ei[eg++]*=d8;ei[eg++]*=eb;ei[eg++]*=ed;ei[eg++]*=ee}};bt=function(eh){for(var eg=0;eg<eh.length;){eh[eg++]=d8;eh[eg++]=eb;eh[eg++]=ed;eh[eg++]=ee}}};cV.noTint=function(){bb=null;bt=null};cV.copy=function(d7,ec,eb,ed,d9,ef,ee,d8,ea){if(ea===r){ea=d8;d8=ee;ee=ef;ef=d9;d9=ed;ed=eb;eb=ec;ec=d7;d7=cV}cV.blend(d7,ec,eb,ed,d9,ef,ee,d8,ea,0)};cV.blend=function(d7,eh,eg,ek,ec,em,el,d8,ee,ed,ea){if(d7.isRemote){throw"Image is loaded remotely. Cannot blend image."}if(ed===r){ed=ee;ee=d8;d8=el;el=em;em=ec;ec=ek;ek=eg;eg=eh;eh=d7;d7=cV}var d9=eh+ek,ef=eg+ec,ej=em+d8,eb=el+ee,ei=ea||cV;if(ea===r||ed===r){cV.loadPixels()}d7.loadPixels();if(d7===cV&&cV.intersect(eh,eg,d9,ef,em,el,ej,eb)){cV.blit_resize(cV.get(eh,eg,d9-eh,ef-eg),0,0,d9-eh-1,ef-eg-1,ei.imageData.data,ei.width,ei.height,em,el,ej,eb,ed)}else{cV.blit_resize(d7,eh,eg,d9,ef,ei.imageData.data,ei.width,ei.height,em,el,ej,eb,ed)}if(ea===r){cV.updatePixels()}};var bm=function(eb){var d7=cV.floor(eb*3.5),d9,d8;d7=d7<1?1:d7<248?d7:248;if(cV.shared.blurRadius!==d7){cV.shared.blurRadius=d7;cV.shared.blurKernelSize=1+(cV.shared.blurRadius<<1);cV.shared.blurKernel=new e(cV.shared.blurKernelSize);var ed=cV.shared.blurKernel;var ec=cV.shared.blurKernelSize;var ea=cV.shared.blurRadius;for(d9=0;d9<ec;d9++){ed[d9]=0}var ee=(d7-1)*(d7-1);for(d9=1;d9<d7;d9++){ed[d7+d9]=ed[d8]=ee}ed[d7]=d7*d7}};var b6=function(el,eq){var d9,ec,ei,en,eo,ex,ep;var es,ek,ew,ev,em;var ef=eq.pixels.getLength();var er=new e(ef);var eA=new e(ef);var ee=new e(ef);var ez=new e(ef);var ey=0;var eh,eg,eu,eb;bm(el);var d8=eq.height;var d7=eq.width;var et=cV.shared.blurKernelSize;var ej=cV.shared.blurRadius;var ed=cV.shared.blurKernel;var ea=eq.imageData.data;for(eg=0;eg<d8;eg++){for(eh=0;eh<d7;eh++){en=ei=ec=eo=d9=0;es=eh-ej;if(es<0){em=-es;es=0}else{if(es>=d7){break}em=0}for(eu=em;eu<et;eu++){if(es>=d7){break}eb=(es+ey)*4;ep=ed[eu];eo+=ep*ea[eb+3];ec+=ep*ea[eb];ei+=ep*ea[eb+1];en+=ep*ea[eb+2];d9+=ep;es++}ek=ey+eh;ez[ek]=eo/d9;er[ek]=ec/d9;eA[ek]=ei/d9;ee[ek]=en/d9}ey+=d7}ey=0;ew=-ej;ev=ew*d7;for(eg=0;eg<d8;eg++){for(eh=0;eh<d7;eh++){en=ei=ec=eo=d9=0;if(ew<0){em=ek=-ew;es=eh}else{if(ew>=d8){break}em=0;ek=ew;es=eh+ev}for(eu=em;eu<et;eu++){if(ek>=d8){break}ep=ed[eu];eo+=ep*ez[es];ec+=ep*er[es];ei+=ep*eA[es];en+=ep*ee[es];d9+=ep;ek++;es+=d7}eb=(eh+ey)*4;ea[eb]=ec/d9;ea[eb+1]=ei/d9;ea[eb+2]=en/d9;ea[eb+3]=eo/d9}ey+=d7;ev+=d7;ew++}};var ce=function(eo,ei){var ee=0;var es=ei.pixels.getLength();var ej=new I(es);var em,d8,eh,eg,ea;var en,eb,ed,ef,d9,ek,er,d7,ep,ec,eq,el;if(!eo){while(ee<es){em=ee;d8=ee+ei.width;while(ee<d8){eh=eg=ei.pixels.getPixel(ee);eb=ee-1;en=ee+1;ed=ee-ei.width;ef=ee+ei.width;if(eb<em){eb=ee}if(en>=d8){en=ee}if(ed<0){ed=0}if(ef>=es){ef=ee}er=ei.pixels.getPixel(ed);ek=ei.pixels.getPixel(eb);d7=ei.pixels.getPixel(ef);d9=ei.pixels.getPixel(en);ea=77*(eh>>16&255)+151*(eh>>8&255)+28*(eh&255);ec=77*(ek>>16&255)+151*(ek>>8&255)+28*(ek&255);ep=77*(d9>>16&255)+151*(d9>>8&255)+28*(d9&255);eq=77*(er>>16&255)+151*(er>>8&255)+28*(er&255);el=77*(d7>>16&255)+151*(d7>>8&255)+28*(d7&255);if(ec>ea){eg=ek;ea=ec}if(ep>ea){eg=d9;ea=ep}if(eq>ea){eg=er;ea=eq}if(el>ea){eg=d7;ea=el}ej[ee++]=eg}}}else{while(ee<es){em=ee;d8=ee+ei.width;while(ee<d8){eh=eg=ei.pixels.getPixel(ee);eb=ee-1;en=ee+1;ed=ee-ei.width;ef=ee+ei.width;if(eb<em){eb=ee}if(en>=d8){en=ee}if(ed<0){ed=0}if(ef>=es){ef=ee}er=ei.pixels.getPixel(ed);ek=ei.pixels.getPixel(eb);d7=ei.pixels.getPixel(ef);d9=ei.pixels.getPixel(en);ea=77*(eh>>16&255)+151*(eh>>8&255)+28*(eh&255);ec=77*(ek>>16&255)+151*(ek>>8&255)+28*(ek&255);ep=77*(d9>>16&255)+151*(d9>>8&255)+28*(d9&255);eq=77*(er>>16&255)+151*(er>>8&255)+28*(er&255);el=77*(d7>>16&255)+151*(d7>>8&255)+28*(d7&255);if(ec<ea){eg=ek;ea=ec}if(ep<ea){eg=d9;ea=ep}if(eq<ea){eg=er;ea=eq}if(el<ea){eg=d7;ea=el}ej[ee++]=eg}}}ei.pixels.set(ej)};cV.filter=function(ee,ed,ea){var eh,ec,d8,eg;if(arguments.length===3){ea.loadPixels();eh=ea}else{cV.loadPixels();eh=cV}if(ed===r){ed=null}if(eh.isRemote){throw"Image is loaded remotely. Cannot filter image."}var ei=eh.pixels.getLength();switch(ee){case 11:var ej=ed||1;b6(ej,eh);break;case 12:if(eh.format===4){for(eg=0;eg<ei;eg++){ec=255-eh.pixels.getPixel(eg);eh.pixels.setPixel(eg,4278190080|ec<<16|ec<<8|ec)}eh.format=1}else{for(eg=0;eg<ei;eg++){ec=eh.pixels.getPixel(eg);d8=77*(ec>>16&255)+151*(ec>>8&255)+28*(ec&255)>>8;eh.pixels.setPixel(eg,ec&4278190080|d8<<16|d8<<8|d8)}}break;case 13:for(eg=0;eg<ei;eg++){eh.pixels.setPixel(eg,eh.pixels.getPixel(eg)^16777215)}break;case 15:if(ed===null){throw"Use filter(POSTERIZE, int levels) instead of filter(POSTERIZE)"}var em=cV.floor(ed);if(em<2||em>255){throw"Levels must be between 2 and 255 for filter(POSTERIZE, levels)"}var ef=em-1;for(eg=0;eg<ei;eg++){var d7=eh.pixels.getPixel(eg)>>16&255;var ek=eh.pixels.getPixel(eg)>>8&255;var d9=eh.pixels.getPixel(eg)&255;d7=(d7*em>>8)*255/ef;ek=(ek*em>>8)*255/ef;d9=(d9*em>>8)*255/ef;eh.pixels.setPixel(eg,4278190080&eh.pixels.getPixel(eg)|d7<<16|ek<<8|d9)}break;case 14:for(eg=0;eg<ei;eg++){eh.pixels.setPixel(eg,eh.pixels.getPixel(eg)|4278190080)}eh.format=1;break;case 16:if(ed===null){ed=0.5}if(ed<0||ed>1){throw"Level must be between 0 and 1 for filter(THRESHOLD, level)"}var eb=cV.floor(ed*255);for(eg=0;eg<ei;eg++){var el=cV.max((eh.pixels.getPixel(eg)&16711680)>>16,cV.max((eh.pixels.getPixel(eg)&65280)>>8,eh.pixels.getPixel(eg)&255));eh.pixels.setPixel(eg,eh.pixels.getPixel(eg)&4278190080|(el<eb?0:16777215))}break;case 17:ce(true,eh);break;case 18:ce(false,eh);break}eh.updatePixels()};cV.shared={fracU:0,ifU:0,fracV:0,ifV:0,u1:0,u2:0,v1:0,v2:0,sX:0,sY:0,iw:0,iw1:0,ih1:0,ul:0,ll:0,ur:0,lr:0,cUL:0,cLL:0,cUR:0,cLR:0,srcXOffset:0,srcYOffset:0,r:0,g:0,b:0,a:0,srcBuffer:null,blurRadius:0,blurKernelSize:0,blurKernel:null};cV.intersect=function(d9,eg,d8,ef,ek,ed,ej,ec){var ei=d8-d9+1;var eb=ef-eg+1;var d7=ej-ek+1;var ee=ec-ed+1;if(ek<d9){d7+=ek-d9;if(d7>ei){d7=ei}}else{var eh=ei+d9-ek;if(d7>eh){d7=eh}}if(ed<eg){ee+=ed-eg;if(ee>eb){ee=eb}}else{var ea=eb+eg-ed;if(ee>ea){ee=ea}}return !(d7<=0||ee<=0)};var dO={};dO[1]=cV.modes.blend;dO[2]=cV.modes.add;dO[4]=cV.modes.subtract;dO[8]=cV.modes.lightest;dO[16]=cV.modes.darkest;dO[0]=cV.modes.replace;dO[32]=cV.modes.difference;dO[64]=cV.modes.exclusion;dO[128]=cV.modes.multiply;dO[256]=cV.modes.screen;dO[512]=cV.modes.overlay;dO[1024]=cV.modes.hard_light;dO[2048]=cV.modes.soft_light;dO[4096]=cV.modes.dodge;dO[8192]=cV.modes.burn;cV.blit_resize=function(ek,ew,eq,ev,ep,eB,eg,eo,eu,el,et,ej,em){var ez,ey;if(ew<0){ew=0}if(eq<0){eq=0}if(ev>=ek.width){ev=ek.width-1}if(ep>=ek.height){ep=ek.height-1}var eF=ev-ew;var eK=ep-eq;var d7=et-eu;var eh=ej-el;if(d7<=0||eh<=0||eF<=0||eK<=0||eu>=eg||el>=eo||ew>=ek.width||eq>=ek.height){return}var ee=o.floor(eF/d7*32768);var eb=o.floor(eK/eh*32768);var eD=cV.shared;eD.srcXOffset=o.floor(eu<0?-eu*ee:ew*32768);eD.srcYOffset=o.floor(el<0?-el*eb:eq*32768);if(eu<0){d7+=eu;eu=0}if(el<0){eh+=el;el=0}d7=o.min(d7,eg-eu);eh=o.min(eh,eo-el);var er=el*eg+eu;var eN;eD.srcBuffer=ek.imageData.data;eD.iw=ek.width;eD.iw1=ek.width-1;eD.ih1=ek.height-1;var es=cV.filter_bilinear,eH=cV.filter_new_scanline,ef=dO[em],eE,eJ,eC,eG,d9,ea,d8=4278190080,eI=16711680,ex=65280,ed=255,eM=32767,eA=15,ei=1,en=9,ec=eD.srcBuffer,eL=o.min;for(ey=0;ey<eh;ey++){eD.sX=eD.srcXOffset;eD.fracV=eD.srcYOffset&eM;eD.ifV=eM-eD.fracV;eD.v1=(eD.srcYOffset>>eA)*eD.iw;eD.v2=eL((eD.srcYOffset>>eA)+1,eD.ih1)*eD.iw;for(ez=0;ez<d7;ez++){eJ=(er+ez)*4;eN=eB[eJ+3]<<24&d8|eB[eJ]<<16&eI|eB[eJ+1]<<8&ex|eB[eJ+2]&ed;eD.fracU=eD.sX&eM;eD.ifU=eM-eD.fracU;eD.ul=eD.ifU*eD.ifV>>eA;eD.ll=eD.ifU*eD.fracV>>eA;eD.ur=eD.fracU*eD.ifV>>eA;eD.lr=eD.fracU*eD.fracV>>eA;eD.u1=eD.sX>>eA;eD.u2=eL(eD.u1+1,eD.iw1);eC=(eD.v1+eD.u1)*4;eG=(eD.v1+eD.u2)*4;d9=(eD.v2+eD.u1)*4;ea=(eD.v2+eD.u2)*4;eD.cUL=ec[eC+3]<<24&d8|ec[eC]<<16&eI|ec[eC+1]<<8&ex|ec[eC+2]&ed;eD.cUR=ec[eG+3]<<24&d8|ec[eG]<<16&eI|ec[eG+1]<<8&ex|ec[eG+2]&ed;eD.cLL=ec[d9+3]<<24&d8|ec[d9]<<16&eI|ec[d9+1]<<8&ex|ec[d9+2]&ed;eD.cLR=ec[ea+3]<<24&d8|ec[ea]<<16&eI|ec[ea+1]<<8&ex|ec[ea+2]&ed;eD.r=eD.ul*((eD.cUL&eI)>>16)+eD.ll*((eD.cLL&eI)>>16)+eD.ur*((eD.cUR&eI)>>16)+eD.lr*((eD.cLR&eI)>>16)<<ei&eI;eD.g=eD.ul*(eD.cUL&ex)+eD.ll*(eD.cLL&ex)+eD.ur*(eD.cUR&ex)+eD.lr*(eD.cLR&ex)>>>eA&ex;eD.b=eD.ul*(eD.cUL&ed)+eD.ll*(eD.cLL&ed)+eD.ur*(eD.cUR&ed)+eD.lr*(eD.cLR&ed)>>>eA;eD.a=eD.ul*((eD.cUL&d8)>>>24)+eD.ll*((eD.cLL&d8)>>>24)+eD.ur*((eD.cUR&d8)>>>24)+eD.lr*((eD.cLR&d8)>>>24)<<en&d8;eE=ef(eN,eD.a|eD.r|eD.g|eD.b);eB[eJ]=(eE&eI)>>>16;eB[eJ+1]=(eE&ex)>>>8;eB[eJ+2]=eE&ed;eB[eJ+3]=(eE&d8)>>>24;eD.sX+=ee}er+=eg;eD.srcYOffset+=eb}};cV.loadFont=function(d8,d9){if(d8===r){throw"font 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From 6e3874061b59e53dcac4be1f9da085be7ff582a9 Mon Sep 17 00:00:00 2001
From: Rike-Benjamin Schuppner <rikebs@debilski.de>
Date: Tue, 26 May 2015 11:43:02 +0200
Subject: [PATCH 3/5] RF: New backend.

---
 Pelita.ipynb                                | 15029 +-----------------
 pelita/ipython/__init__.py                  |    16 +-
 pelita/ipython/_static/index.html           |     7 +-
 pelita/ipython/_static/pelita-canvas.coffee |     7 +-
 pelita/ipython/index.html                   |     0
 5 files changed, 30 insertions(+), 15029 deletions(-)
 delete mode 100644 pelita/ipython/index.html

diff --git a/Pelita.ipynb b/Pelita.ipynb
index a90658eb1..c508c6d6e 100644
--- a/Pelita.ipynb
+++ b/Pelita.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": null,
+   "execution_count": 1,
    "metadata": {
     "collapsed": false
    },
@@ -14,7 +14,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 2,
    "metadata": {
     "collapsed": false
    },
@@ -25,7 +25,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 3,
    "metadata": {
     "collapsed": false
    },
@@ -34,7 +34,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Listening on 0.0.0.0, port 51785\n"
+      "Listening on 0.0.0.0, port 46668\n"
      ]
     }
    ],
@@ -44,7 +44,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 4,
    "metadata": {
     "collapsed": false
    },
@@ -52,19 +52,12 @@
     {
      "data": {
       "text/plain": [
-       "'ipc:///tmp/pelita.139668139983872'"
+       "'ipc:///tmp/pelita.140416746065592'"
       ]
      },
-     "execution_count": 3,
+     "execution_count": 4,
      "metadata": {},
      "output_type": "execute_result"
-    },
-    {
-     "name": "stderr",
-     "output_type": "stream",
-     "text": [
-      "WARNING:tornado.access:404 GET /favicon.ico (127.0.0.1) 8.05ms\n"
-     ]
     }
    ],
    "source": [
@@ -73,7 +66,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 7,
+   "execution_count": 5,
    "metadata": {
     "collapsed": false,
     "scrolled": false
@@ -83,8 +76,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "WebSocket closed\n",
-      "http://0.0.0.0:51785/static/index.html\n"
+      "http://0.0.0.0:46668/static/index.html\n"
      ]
     },
     {
@@ -94,17 +86,17 @@
        "        <iframe\n",
        "            width=\"600\"\n",
        "            height=\"300\"\n",
-       "            src=\"http://0.0.0.0:51785/static/index.html\"\n",
+       "            src=\"http://0.0.0.0:46668/static/index.html\"\n",
        "            frameborder=\"0\"\n",
        "            allowfullscreen\n",
        "        ></iframe>\n",
        "        "
       ],
       "text/plain": [
-       "<IPython.lib.display.IFrame at 0x7f0706c85d68>"
+       "<IPython.lib.display.IFrame at 0x7fb55212f278>"
       ]
      },
-     "execution_count": 7,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -118,7 +110,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 6,
    "metadata": {
     "collapsed": false
    },
@@ -137,15009 +129,20 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 8,
+   "execution_count": 11,
    "metadata": {
     "collapsed": false
    },
    "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "WebSocket opened\n"
-     ]
-    },
     {
      "data": {
       "text/plain": [
-       "<subprocess.Popen at 0x7f0706ddabe0>"
+       "<subprocess.Popen at 0x7fb5520d9da0>"
       ]
      },
-     "execution_count": 8,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
-    },
-    {
-     "name": "stderr",
-     "output_type": "stream",
-     "text": [
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n",
-      "ERROR:tornado.application:Uncaught exception GET /ws-echo (127.0.0.1)\n",
-      "HTTPServerRequest(protocol='http', host='0.0.0.0:51785', method='GET', uri='/ws-echo', version='HTTP/1.1', remote_ip='127.0.0.1', headers={'Origin': 'http://0.0.0.0:51785', 'Connection': 'Upgrade', 'Sec-Websocket-Version': '13', 'Cache-Control': 'no-cache', 'Accept-Encoding': 'gzip, deflate, sdch', 'Pragma': 'no-cache', 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', 'Dnt': '1', 'Sec-Websocket-Extensions': 'permessage-deflate; client_max_window_bits', 'Sec-Websocket-Key': 'HzLsEPYtCCPiWji+qXPe5Q==', 'Host': '0.0.0.0:51785', 'Upgrade': 'websocket', 'Accept-Language': 'en-US,en;q=0.8,de;q=0.6'})\n",
-      "Traceback (most recent call last):\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/web.py\", line 1302, in _stack_context_handle_exception\n",
-      "    raise_exc_info((type, value, traceback))\n",
-      "  File \"<string>\", line 3, in raise_exc_info\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/stack_context.py\", line 314, in wrapped\n",
-      "    ret = fn(*args, **kwargs)\n",
-      "  File \"/home/schuppner/Projects/pelita/pelita/ipython/__init__.py\", line 135, in on_data\n",
-      "    self.write_message(data_json)\n",
-      "  File \"/home/schuppner/.local/lib/python3.4/site-packages/tornado/websocket.py\", line 200, in write_message\n",
-      "    raise WebSocketClosedError()\n",
-      "tornado.websocket.WebSocketClosedError\n"
-     ]
     }
    ],
    "source": [
diff --git a/pelita/ipython/__init__.py b/pelita/ipython/__init__.py
index 79729c892..f0db631c9 100644
--- a/pelita/ipython/__init__.py
+++ b/pelita/ipython/__init__.py
@@ -96,22 +96,13 @@ def on_data(self, data):
             self._walls = []
             for y in range(universe.maze.height):
                 for x in range(universe.maze.width):
-                    if Wall in universe.maze[x, y]:
+                    if universe.maze[x, y]:
                         self._walls.append("#")
-                    elif Food in universe.maze[x, y]:
-                        self._walls.append(".")
                     else:
                         self._walls.append(" ")
 
             self._walls = "".join(self._walls)
 
-            food = []
-            for x in range(universe.maze.width):
-                col = []
-                for y in range(universe.maze.height):
-                    col += [Food in universe.maze[x, y]]
-                food.append(col)
-
             width = universe.maze.width
             height = universe.maze.height
 
@@ -120,13 +111,14 @@ def on_data(self, data):
                 bot_data = bot.current_pos
                 bots.append(bot_data)
 
-            teams = [{"name": t.name, "score": t.score} for t in universe.teams]
+            teams = [{"name": game_state["team_name"][idx], "score": t.score}
+                        for idx, t in enumerate(universe.teams)]
 
             data = {'walls': self._walls,
                     'width': width,
                     'height': height,
                     'bots': bots,
-                    'food': food,
+                    'food': [list(f) for f in universe.food],
                     'teams': teams,
                     'state': game_state
                     }
diff --git a/pelita/ipython/_static/index.html b/pelita/ipython/_static/index.html
index 8a5385b7c..4c8172806 100644
--- a/pelita/ipython/_static/index.html
+++ b/pelita/ipython/_static/index.html
@@ -32,7 +32,12 @@ <h4><span class="scoreA">Score A</span> <span>:</span> <span class="scoreB">Scor
             state = data.state;
             teams = data.teams;
 
-            createMaze($(".live-canvas"), data.width, data.height, walls, data.bots);
+            $(".teamA").text(data.teams[0].name);
+            $(".teamB").text(data.teams[1].name);
+            $(".scoreA").text(data.teams[0].score);
+            $(".scoreB").text(data.teams[1].score);
+
+            createMaze($(".live-canvas"), data.width, data.height, walls, food, data.bots);
           };
 
         var ws_status = $("#ws_status");
diff --git a/pelita/ipython/_static/pelita-canvas.coffee b/pelita/ipython/_static/pelita-canvas.coffee
index 8d8bfd795..6c23e5635 100644
--- a/pelita/ipython/_static/pelita-canvas.coffee
+++ b/pelita/ipython/_static/pelita-canvas.coffee
@@ -14,7 +14,7 @@ CanvasRenderingContext2D::roundRect = (x, y, w, h, r) ->
 
 this.Maze = class Maze
 
-  constructor: (@canvas, @width, @height, @maze, @bot_positions) ->
+  constructor: (@canvas, @width, @height, @maze, @food, @bot_positions) ->
     #@width ?= @canvas.data("maze-width")
     #@height ?= @canvas.data("maze-height")
     #@maze ?= @canvas.data("maze-walls")
@@ -23,6 +23,7 @@ this.Maze = class Maze
     @canvas.data("maze-width", @width)
     @canvas.data("maze-height", @height)
     @canvas.data("maze-walls", @maze)
+    @canvas.data("maze-food", @maze)
     @canvas.data("maze-bot-positions", @bot_positions)
 
     @ctx = @canvas[0].getContext "2d"
@@ -110,8 +111,8 @@ this.Maze = class Maze
           #@ctx.roundRect(i * @scale, j * @scale, @scale, @scale, 2)
           #@ctx.fill()
           @ctx.fillRect(i * @scale, j * @scale, @scale, @scale)
-        if "." in @maze[j * @width + i]
-          @draw_food(i, j)
+    for [i, j] in @food
+      @draw_food(i, j)
     return
 
 this.createMaze = (args...) ->
diff --git a/pelita/ipython/index.html b/pelita/ipython/index.html
deleted file mode 100644
index e69de29bb..000000000

From 5139f1536cc2253c04e7a5869b2bcea8cf5ed5a7 Mon Sep 17 00:00:00 2001
From: Rike-Benjamin Schuppner <rikebs@debilski.de>
Date: Tue, 26 May 2015 23:33:04 +0200
Subject: [PATCH 4/5] WIP: Preliminary woring version.

---
 Pelita.ipynb                      | 315 ++++++++++++++++++++----------
 pelita/ipython/__init__.py        |  37 +---
 pelita/ipython/_static/index.html |  43 ++--
 3 files changed, 239 insertions(+), 156 deletions(-)

diff --git a/Pelita.ipynb b/Pelita.ipynb
index c508c6d6e..5efedfe25 100644
--- a/Pelita.ipynb
+++ b/Pelita.ipynb
@@ -1,15 +1,39 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Pelita Notebook\n",
+    "Defining a player and running a Pelita game from inside IPython"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "First: some basic imports"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": 1,
    "metadata": {
-    "collapsed": false
+    "collapsed": true
    },
    "outputs": [],
    "source": [
-    "%load_ext autoreload\n",
-    "%autoreload 2"
+    "import pelita\n",
+    "from players import FoodEatingPlayer\n",
+    "from pelita.game_master import GameMaster\n",
+    "from pelita.player import AbstractPlayer, SimpleTeam"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "The player which we define is the `SmartRandomPlayer`, which is also shown on the homepage. Nothing too fancy here…"
    ]
   },
   {
@@ -20,116 +44,161 @@
    },
    "outputs": [],
    "source": [
-    "import pelita.ipython"
+    "from pelita import datamodel\n",
+    "class SmartRandomPlayer(AbstractPlayer):\n",
+    "    def get_move(self):\n",
+    "        dangerous_enemy_pos = [bot.current_pos\n",
+    "            for bot in self.enemy_bots if bot.is_destroyer]\n",
+    "        killable_enemy_pos = [bot.current_pos\n",
+    "            for bot in self.enemy_bots if bot.is_harvester]\n",
+    "\n",
+    "        smart_moves = []\n",
+    "        for move, new_pos in list(self.legal_moves.items()):\n",
+    "            if (move == datamodel.stop or\n",
+    "                new_pos in dangerous_enemy_pos):\n",
+    "                continue # bad idea\n",
+    "            elif (new_pos in killable_enemy_pos or\n",
+    "                  new_pos in self.enemy_food):\n",
+    "                return move # get it!\n",
+    "            else:\n",
+    "                smart_moves.append(move)\n",
+    "\n",
+    "        if smart_moves:\n",
+    "            return self.rnd.choice(smart_moves)\n",
+    "        else:\n",
+    "            # we ran out of smart moves\n",
+    "            return datamodel.stop"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We define our"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": 3,
    "metadata": {
-    "collapsed": false
+    "collapsed": true
    },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Listening on 0.0.0.0, port 46668\n"
-     ]
-    }
-   ],
+   "outputs": [],
+   "source": [
+    "team = SimpleTeam(\"My winning team\", SmartRandomPlayer(), SmartRandomPlayer())"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
    "source": [
-    "application, sockets = pelita.ipython.printit()"
+    "… and the enemy’s team."
    ]
   },
   {
    "cell_type": "code",
    "execution_count": 4,
    "metadata": {
-    "collapsed": false
+    "collapsed": true
    },
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "'ipc:///tmp/pelita.140416746065592'"
-      ]
-     },
-     "execution_count": 4,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
-    "application.path"
+    "enemy = SimpleTeam(\"Enemy team\", FoodEatingPlayer(), FoodEatingPlayer())"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We set-up a maze"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": 5,
    "metadata": {
-    "collapsed": false,
-    "scrolled": false
+    "collapsed": true
    },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "http://0.0.0.0:46668/static/index.html\n"
-     ]
-    },
-    {
-     "data": {
-      "text/html": [
-       "\n",
-       "        <iframe\n",
-       "            width=\"600\"\n",
-       "            height=\"300\"\n",
-       "            src=\"http://0.0.0.0:46668/static/index.html\"\n",
-       "            frameborder=\"0\"\n",
-       "            allowfullscreen\n",
-       "        ></iframe>\n",
-       "        "
-      ],
-      "text/plain": [
-       "<IPython.lib.display.IFrame at 0x7fb55212f278>"
-      ]
-     },
-     "execution_count": 5,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
-    "from IPython.display import IFrame\n",
-    "url = \"http://%s:%i/static/index.html\" % sockets[0].getsockname()\n",
-    "print(url)\n",
-    "IFrame(url, width=600, height=300)"
+    "layout = \"\"\"\n",
+    "##################################\n",
+    "#...   #      .#     #  #       3#\n",
+    "# ## #   # ###    #  #     #####1#\n",
+    "#.   # #    # .   # ##           #\n",
+    "#.#    #  .    #    .  # #########\n",
+    "# ## # ## ####    # ##.   . .   .#\n",
+    "#.. .  .  #. . #. #  # ## #####  #\n",
+    "# ## #### #.## #     #  .  . . ..#\n",
+    "#..  ..   # #  #  #    ##### #####\n",
+    "##### #####    #  #  # #   ..  ..#\n",
+    "#.. . .  .  #     # ##.# #### ## #\n",
+    "#  ##### ## #  # .# . .#  .  . ..#\n",
+    "#.   . .   .## #    #### ## # ## #\n",
+    "######### #  .    #    .  #    #.#\n",
+    "#           ## #   . #    # #   .#\n",
+    "#0#####     #  #    ### #   # ## #\n",
+    "#2       #  #     #.      #   ...#\n",
+    "##################################\n",
+    "\"\"\""
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Now it’s time for some interaction with IPython. Basically, we hijack IPython’s tornado application and use this for our own websockets and small file server."
    ]
   },
   {
    "cell_type": "code",
    "execution_count": 6,
    "metadata": {
-    "collapsed": false
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    "import pelita.ipython\n",
+    "from IPython.display import IFrame"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Register our application:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {
+    "collapsed": false,
+    "scrolled": false
    },
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "WebSocket opened\n"
+      "Listening on 0.0.0.0, port 52588\n"
      ]
     }
    ],
    "source": [
-    "from subprocess import Popen"
+    "application, sockets = pelita.ipython.init_app()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "This ipc socket is a subscriber sink for a Pelita zmq publisher socket:"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 8,
    "metadata": {
     "collapsed": false
    },
@@ -137,90 +206,130 @@
     {
      "data": {
       "text/plain": [
-       "<subprocess.Popen at 0x7fb5520d9da0>"
+       "'ipc:///tmp/pelita.4360207608'"
       ]
      },
-     "execution_count": 11,
+     "execution_count": 8,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "Popen([\"/home/schuppner/Projects/pelita/pelitagame\", \"--null\", \"--publish\", application.path])"
+    "application.path"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "We create a publisher which will act as a viewer for the Pelita process and send all data. (Every application should have only one publisher, otherwise it might not work.)"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 11,
+   "execution_count": 9,
    "metadata": {
-    "collapsed": false
+    "collapsed": true
    },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Listening on 0.0.0.0, port 36979\n"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
-    "application2, sockets2 = pelita.ipython.printit()"
+    "from pelita.simplesetup import SimplePublisher"
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 10,
    "metadata": {
-    "collapsed": false
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    "publisher = SimplePublisher(application.path)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Now we’ll get the HTML output prepared in an iframe. This will accept data over a websocket and start displaying our little game once the data arrives."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "metadata": {
+    "collapsed": false,
+    "scrolled": true
    },
    "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "This iframe is also available as: http://0.0.0.0:52588/static/index.html\n"
+     ]
+    },
     {
      "data": {
       "text/html": [
        "\n",
        "        <iframe\n",
-       "            width=\"800\"\n",
-       "            height=\"500\"\n",
-       "            src=\"http://0.0.0.0:36979/static/index.html\"\n",
+       "            width=\"600\"\n",
+       "            height=\"300\"\n",
+       "            src=\"http://0.0.0.0:52588/static/index.html\"\n",
        "            frameborder=\"0\"\n",
        "            allowfullscreen\n",
        "        ></iframe>\n",
        "        "
       ],
       "text/plain": [
-       "<IPython.lib.display.IFrame at 0x7f7353facc88>"
+       "<IPython.lib.display.IFrame at 0x104b905f8>"
       ]
      },
-     "execution_count": 12,
+     "execution_count": 11,
      "metadata": {},
      "output_type": "execute_result"
     }
    ],
    "source": [
-    "IFrame(\"http://%s:%i/static/index.html\" % sockets2[0].getsockname(), width=800, height=500)"
+    "url = \"http://%s:%i/static/index.html\" % sockets[0].getsockname()\n",
+    "print(\"This iframe is also available as: {url}\".format(url=url))\n",
+    "IFrame(url, width=600, height=300)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Finally, we set up a game with the given layout and teams. Remember to always connect to the publisher before starting the game. Otherwise, there’ll be no output."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 16,
+   "execution_count": 12,
    "metadata": {
     "collapsed": false
    },
    "outputs": [
     {
-     "data": {
-      "text/plain": [
-       "<subprocess.Popen at 0x7f7353fb9ba8>"
-      ]
-     },
-     "execution_count": 16,
-     "metadata": {},
-     "output_type": "execute_result"
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "WebSocket opened\n"
+     ]
     }
    ],
    "source": [
-    "Popen([\"/home/schuppner/Projects/pelita/pelitagame\", \"--null\", \"--publish\", application2.path])"
+    "gm = GameMaster(layout, [team, enemy], 4, 100)\n",
+    "gm.register_viewer(publisher)\n",
+    "gm.play()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "The most likely outcome is, that we lose badly against the FoodEatingPlayers."
    ]
   },
   {
@@ -249,7 +358,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.4.2"
+   "version": "3.4.3"
   }
  },
  "nbformat": 4,
diff --git a/pelita/ipython/__init__.py b/pelita/ipython/__init__.py
index f0db631c9..d240a0664 100644
--- a/pelita/ipython/__init__.py
+++ b/pelita/ipython/__init__.py
@@ -19,15 +19,6 @@
 
 import json
 
-class WebWrapper:
-    def __init__(self):
-        pass
-
-    def show(self):
-        pass
-
-
-
 class ZMQPubSub:
     def __init__(self, callback):
         self.callback = callback
@@ -46,23 +37,12 @@ class Application(tornado.web.Application):
     def __init__(self):
         self.path = 'ipc:///tmp/pelita.%i' % id(self)
         handlers = [
-            (r"/", HomePageHandler),
             (r"/static/(.*)", tornado.web.StaticFileHandler, {'path': os.path.join(os.path.dirname(__file__), '_static')}),
             (r"/ws-echo", EchoWebSocket, {'path': self.path})
         ]
         tornado.web.Application.__init__(self, handlers, debug=True)
 
-# Handle the home page/index request.
-# @route("/").
-class HomePageHandler(tornado.web.RequestHandler):
-    def get(self):
-        #       self.render("index.html")
-        self.render_string("index.html")
-        self.write("hi")
-
 class EchoWebSocket(tornado.websocket.WebSocketHandler):
-
-
     def initialize(self, path):
         self.path = path
         self._walls = None
@@ -79,7 +59,6 @@ def open(self):
 
     def on_message(self, message):
         pass
-        # self.write_message(u"You said: " + message)
 
     def on_close(self):
         print("WebSocket closed")
@@ -111,8 +90,11 @@ def on_data(self, data):
                 bot_data = bot.current_pos
                 bots.append(bot_data)
 
-            teams = [{"name": game_state["team_name"][idx], "score": t.score}
-                        for idx, t in enumerate(universe.teams)]
+            if game_state:
+                teams = [{"name": game_state["team_name"][idx], "score": t.score}
+                          for idx, t in enumerate(universe.teams)]
+            else:
+                teams = []
 
             data = {'walls': self._walls,
                     'width': width,
@@ -123,15 +105,9 @@ def on_data(self, data):
                     'state': game_state
                     }
             data_json = json.dumps(data)
-            # print data_json
             self.write_message(data_json)
 
-
-IFRAME = """
-
-"""
-
-def printit():
+def init_app():
     application = Application()
     sockets = tornado.netutil.bind_sockets(0, '', family=socket.AF_INET)
     server = tornado.httpserver.HTTPServer(application)
@@ -140,5 +116,4 @@ def printit():
     for s in sockets:
         print('Listening on %s, port %d' % s.getsockname()[:2])
 
-#    tornado.ioloop.IOLoop.current().start()
     return application, sockets
diff --git a/pelita/ipython/_static/index.html b/pelita/ipython/_static/index.html
index 4c8172806..64c853039 100644
--- a/pelita/ipython/_static/index.html
+++ b/pelita/ipython/_static/index.html
@@ -2,7 +2,6 @@
 <html xmlns="http://www.w3.org/1999/xhtml">
   <head><meta content="text/html; charset=UTF-8" http-equiv="content-type" /><title>Pelita</title>
     <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
-
     <script type="text/javascript" src="http://coffeescript.org/extras/coffee-script.js"></script>
     <script type="text/coffeescript" src="pelita-canvas.coffee"></script>
   </head>
@@ -18,27 +17,27 @@ <h4><span class="scoreA">Score A</span> <span>:</span> <span class="scoreB">Scor
       </article>
 
       <script type="text/javascript">
-          var loc = window.location, ws_uri;
-          ws_uri = (loc.protocol === "https:") ? "wss:" : "ws:";
-          ws_uri += "//" + loc.host;
-          ws_uri += "/ws-echo";
-
-          var ws = new WebSocket(ws_uri);
-          ws.onmessage = function(event) {
-            data = JSON.parse(event.data);
-
-            walls = data.walls;
-            food = data.food;
-            state = data.state;
-            teams = data.teams;
-
-            $(".teamA").text(data.teams[0].name);
-            $(".teamB").text(data.teams[1].name);
-            $(".scoreA").text(data.teams[0].score);
-            $(".scoreB").text(data.teams[1].score);
-
-            createMaze($(".live-canvas"), data.width, data.height, walls, food, data.bots);
-          };
+        var loc = window.location, ws_uri;
+        ws_uri = (loc.protocol === "https:") ? "wss:" : "ws:";
+        ws_uri += "//" + loc.host;
+        ws_uri += "/ws-echo";
+
+        var ws = new WebSocket(ws_uri);
+        ws.onmessage = function(event) {
+          data = JSON.parse(event.data);
+
+          walls = data.walls;
+          food = data.food;
+          state = data.state;
+          teams = data.teams;
+
+          $(".teamA").text(data.teams[0].name);
+          $(".teamB").text(data.teams[1].name);
+          $(".scoreA").text(data.teams[0].score);
+          $(".scoreB").text(data.teams[1].score);
+
+          createMaze($(".live-canvas"), data.width, data.height, walls, food, data.bots);
+        };
 
         var ws_status = $("#ws_status");
         ws.onerror = function(event) {

From b596cb555aaf4b9e5aea51a1d02e964ee5cc5254 Mon Sep 17 00:00:00 2001
From: Rike-Benjamin Schuppner <rikebs@debilski.de>
Date: Wed, 2 Sep 2015 13:59:38 +0200
Subject: [PATCH 5/5] BF: Update to new json handler.

---
 pelita/ipython/__init__.py | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/pelita/ipython/__init__.py b/pelita/ipython/__init__.py
index d240a0664..3e5a514df 100644
--- a/pelita/ipython/__init__.py
+++ b/pelita/ipython/__init__.py
@@ -11,13 +11,10 @@
 import zmq
 from zmq.eventloop.zmqstream import ZMQStream
 
-from IPython.core.display import HTML
 import os
 
-from ..messaging.json_convert import json_converter
-from ..datamodel import Wall, Food
-
 import json
+import pelita
 
 class ZMQPubSub:
     def __init__(self, callback):
@@ -64,11 +61,11 @@ def on_close(self):
         print("WebSocket closed")
 
     def on_data(self, data):
-        msg_objs = json_converter.loads(data[0].decode())
-
-        data = msg_objs.get("__data__") or {}
+        py_obj = json.loads(data[0].decode())
+        data = py_obj.get("__data__") or {}
 
         universe = data.get("universe")
+        universe = pelita.datamodel.CTFUniverse._from_json_dict(universe)
         game_state = data.get("game_state")
         if universe: