vispy/vispy — pull request #173 by almarklein (2014-03-04 10:09:13+00:00)
Title: Nicer pyglet import error message if version not high enough

The version of pyglet that we need is not released yet. So one needs to
do "pip install http://pyglet.googlecode.com/archive/tip.zip".

Also added a note; I found that the pyglet process events function
does not really process paint events, but this might need further
investigation.