Way to fix "KeyError: 'CONTENT-LENGTH'" when using Python3.7

[Kamilet]

When using latest version of Python (3.7.4 for now), the following error will occor when uploading images.

File "...\lib\cgi.py", line 220, in parse_multipart
headers['Content-Length'] = pdict['CONTENT-LENGTH']
KeyError: 'CONTENT-LENGTH'

The same problem won't happen in Python 3.6, because 'CONTENT-LENGTH' isn't necessary. But in Python 3.7 it is.
I found a way to temporary fix it for Python 3.7.

1. open 'server.py' and add a line under def parse_POST(self):

    def parse_POST(self):
        ctype, pdict = parse_header(self.headers['content-type'])
        pdict['boundary'] = bytes(pdict['boundary'], "utf-8")
        # Added 1 debug line here
        pdict['CONTENT-LENGTH'] = int(self.headers['content-length'])
        if ctype == 'multipart/form-data':
            postvars = parse_multipart(self.rfile, pdict)
        elif ctype == 'application/x-www-form-urlencoded':
            length = int(self.headers['content-length'])
            postvars = parse_qs(
                self.rfile.read(length),
                keep_blank_values=1)
        else:
            postvars = {}
        return postvars

2. Change line id_str = re.sub(r'\W+', '', id_str.decode()) in def do_POST(self):

    def do_POST(self):
        self.log_t()
        form = self.parse_POST()
        self.log_t()

        if "id" in form:
            id_str = form["id"][0]
            # Changed 1 line here
            # original line:
            # id_str = re.sub(r'\W+', '', id_str.decode())
            id_str = re.sub(r'\W+', '', id_str())
        else:
            self.ret_result(False)
            return

Then it's good to go.
Successed with: Windows 10, Python 3.7.4 , CUDA 10.1

[jitvimol]

@Kamilet Can you please advise what server.py file? I search in anaconda folder and there are multiple file with this name? Thanks