I've implemented some context managers here:
https://github.com/adamlwgriffiths/PyGLy/blob/master/pygly/gl/legacy/__init__.py

Note the legacy module prefix.

Also, be aware that using multiple context managers in a single with 
statement will result in undesired behavior due to the order that python 
unwinds them.

Ie:

with matrix_mode( GL_PROJECTION ), matrix( projmatrix ):
   pass

Python unwinds in the same order it set (go figure), so the following will 
occur:

matrix mode begins unknown
matrix mode push - matrix mode now projection
matrix push - matrix added to projection matrix stack
matrix mode pop - projection mode popped from matrix mode, matrix mode 
unknown
matrix pop - matrix popped from unknown matrix stack

Cheers,
Adam

On Thursday, November 1, 2012 8:11:04 PM UTC+11, Mark wrote:
>
> Rather than writing: 
>
> glBegin() 
> ... draw 
> glEnd() 
>
> it would be nice to write: 
>
> with glContext(): 
>     ... draw 
>
>
> I know I can easily create my own glContext context manager, but it 
> just seems that it would be nicer built in. Or is there one and I just 
> haven't found it? 
>

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