Traceback (most recent call last):


 "/Users/xxxx/.pyenv/versions/3.5.3/lib/python3.5/weakref.py", line 117, in remove
TypeError: 'NoneType' object is not callable

Traceback (most recent call last):


 "Z:\Python\envs\wjahr\playground\lib\site-packages\OpenGL\latebind.py", line 41, in __call__

return self._finalCall( *args, **named )
TypeError: 'NoneType' object is not callable
