Traceback (most recent call last):

 "C:\Python3\lib\site-packages\nose-1.3.4-py3.4.egg\nose\result.py", line 187, in _exc_info_to_string
return _TextTestResult._exc_info_to_string(self, err, test)

 "C:\Python3\lib\unittest\result.py", line 184, in _exc_info_to_string
msgLines = traceback.format_exception(exctype, value, tb)

 "C:\Python3\lib\traceback.py", line 181, in format_exception
return list(_format_exception_iter(etype, value, tb, limit, chain))

 "C:\Python3\lib\traceback.py", line 153, in _format_exception_iter
yield from _format_list_iter(_extract_tb_iter(tb, limit=limit))

 "C:\Python3\lib\traceback.py", line 18, in _format_list_iter
for filename, lineno, name, line in extracted_list:

 "C:\Python3\lib\traceback.py", line 65, in _extract_tb_or_stack_iter
line = linecache.getline(filename, lineno, f.f_globals)

 "C:\Python3\lib\linecache.py", line 15, in getline
lines = getlines(filename, module_globals)

 "C:\Python3\lib\linecache.py", line 41, in getlines
return updatecache(filename, module_globals)

 "C:\Python3\lib\linecache.py", line 126, in updatecache
with tokenize.open(fullname) as fp:

 "C:\Python3\lib\tokenize.py", line 438, in open
buffer = _builtin_open(filename, 'rb')TypeError: open() takes 1 positional argument but 2 were given
Traceback (most recent call last):


 "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1982, in wsgi_app

response = self.full_dispatch_request()


 "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1614, in full_dispatch_request

rv = self.handle_user_exception(e)


 "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1517, in handle_user_exception

reraise(exc_type, exc_value, tb)


 "/usr/local/lib/python3.6/dist-packages/flask/_compat.py", line 33, in reraise

raise value


 "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1612, in full_dispatch_request

rv = self.dispatch_request()


 "/usr/local/lib/python3.6/dist-packages/flask/app.py", line 1598, in dispatch_request

return self.view_functions[rule.endpoint](**req.view_args)


 "/usr/share/mkchromecast/mkchromecast/audio.py", line 748, in stream

if (platform == 'Linux' and bool(backends_dict) is True and
NameError: name 'platform' is not defined
