MarsSeed  filed a deletion request for python2-openglcontext :
Duplicate of AUR/python-openglcontext.
I suggest it's safe to delete this abandoned content.
Because it's actually only documentation and examples for learning PyOpenGL, from 2014.
Documentation is available online: http://pyopengl.sourceforge.net/context/tutorials/index.html
The supplementary example source code is not intended to be installed in system. Instead, it's recommended to be cloned from git repository or downloaded to user home from PyPI: