Blender 2.79b Not Compatible with tkinter

[alexrockhill]

It looks like there were some developments and tkinter isn't included in the new blender python3.5m package. This causes issues with the current version of MMVT when importing matplotlib.

https://developer.blender.org/feed/?after=6540497215700866334

[karima:mmvt] (nmr-stable60-env) Traceback (most recent call last):
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt_blend/empty_subject.blend/run_mmvt.py", line 12, in
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/mmvt_addon.py", line 29, in
import colors_utils
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/colors_utils.py", line 5, in
import matplotlib.pyplot as plt
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/matplotlib/pyplot.py", line 2374, in
switch_backend(rcParams["backend"])
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/matplotlib/pyplot.py", line 207, in switch_backend
backend_mod = importlib.import_module(backend_name)
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/importlib/init.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/matplotlib/backends/backend_tkagg.py", line 1, in
from . import _backend_tk
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/matplotlib/backends/_backend_tk.py", line 5, in
import tkinter as Tk
ImportError: No module named 'tkinter'

[alexrockhill]

Adding these to the first two lines of src/mmvt_addon/colors_utils.py solved the installer issue but might not be a long-term fix.

import matplotlib
matplotlib.use('Agg')

The matt_hilbert brain was inflated when I loaded MMVT but I just changed to inflated and back to pial and it fixed.

But then I get the following non-fatal traceback while running MMVT, which is probably due to the file being generated in an older version of python:

Traceback (most recent call last):
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/mmvt_addon.py", line 774, in main
load_all_panels(addon_prefs)
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/mmvt_addon.py", line 722, in load_all_panels
panel.init(mmvt)
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/connections_panel.py", line 1005, in init
conn_files = [f for f in conn_files if all([k in set(np.load(f).keys()) for k in conn_keys])]
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/connections_panel.py", line 1005, in
conn_files = [f for f in conn_files if all([k in set(np.load(f).keys()) for k in conn_keys])]
File "/autofs/space/karima_001/users/alex/software/mmvt_root_alex/mmvt/src/mmvt_addon/connections_panel.py", line 1005, in
conn_files = [f for f in conn_files if all([k in set(np.load(f).keys()) for k in conn_keys])]
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/numpy/lib/npyio.py", line 426, in load
pickle_kwargs=pickle_kwargs)
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/numpy/lib/npyio.py", line 182, in init
_zip = zipfile_factory(fid)
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/numpy/lib/npyio.py", line 112, in zipfile_factory
return zipfile.ZipFile(file, *args, **kwargs)
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/zipfile.py", line 1026, in init
self._RealGetContents()
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/zipfile.py", line 1094, in _RealGetContents
raise BadZipFile("File is not a zip file")
zipfile.BadZipFile: File is not a zip file

Exception ignored in: <bound method NpzFile.del of <numpy.lib.npyio.NpzFile object at 0x2af2f51cac88>>
Traceback (most recent call last):
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/numpy/lib/npyio.py", line 219, in del
self.close()
File "/autofs/space/karima_001/users/alex/software/blender-2.79b-linux-glibc219-x86_64/2.79/python/lib/python3.5/site-packages/numpy/lib/npyio.py", line 210, in close
if self.zip is not None:
AttributeError: 'NpzFile' object has no attribute 'zip'

[pelednoam]

Well, this is a problem. We need to understand the NpzFile error. Also, I think we don't need to import matplotlib. Until now, we could find a workaround.