Fix for Issue #517 tests/window/CONTEXT_SHARE.py glIsList exceptions
Fix for Issue #517 tests/window/CONTEXT_SHARE.py glIsList exceptions

infowantstobeseen/pyglet-darwincore,infowantstobeseen/pyglet-darwincore,infowantstobeseen/pyglet-darwincore,infowantstobeseen/pyglet-darwincore,infowantstobeseen/pyglet-darwincore