[PyOpenGL-Users] glGenVertexArrays present with python/absent with python3

[rndblnch <rnd...@gm...>]

Hello,

I am experimenting with OpenGL 3.2 core using PyOpenGL 3.0.2
I am experiencing something strange: a function (glGenVertexArrays) that is
present when I use python 2.7 is absent when I use python 3.3.
Maybe the automatic conversion from 2to3 breaks something?
I have a lot of PyOpenGL code that run on both python/python3, and it is the
first time I am experiencing something like that.

Any hint?

Below a quick transcript to show the problem (the "core" in the glut init
display string is a hack of mine to get apple's glut supporting opengl 3.2
core):

python 2.7:

	blanch% python
	Python 2.7.2 (default, Oct 11 2012, 20:14:37) 
	[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-418.0.60)] on darwin
	Type "help", "copyright", "credits" or "license" for more information.
	>>> from OpenGL import GL
	>>> from OpenGL import GLUT
	>>> GLUT.glutInit(["test"])
	['test']
	>>> GLUT.glutInitDisplayString(b"rgba double depth core")
	>>> GLUT.glutCreateWindow(b"titi")
	1
	>>> bool(GL.glGenVertexArrays)
	True
	>>> GL
	<module 'OpenGL.GL' from '/Library/Python/2.7/site-packages/
	PyOpenGL-3.0.2-py2.7.egg/OpenGL/GL/__init__.pyc'>
	>>> GL.glGetString(GL.GL_VERSION)
	'3.2 NVIDIA-8.16.74 310.40.00.10f02'
	>>> GL.glGetString(GL.GL_SHADING_LANGUAGE_VERSION)
	'1.50'
	>>> ^D

python 3.3:

	blanch% python3
	Python 3.3.2 (v3.3.2:d047928ae3f6, May 13 2013, 13:52:24) 
	[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
	Type "help", "copyright", "credits" or "license" for more information.
	>>> from OpenGL import GL
	>>> from OpenGL import GLUT
	>>> GLUT.glutInit(["test"])
	["b'test'"]
	>>> GLUT.glutInitDisplayString(b"rgba double depth core")
	>>> GLUT.glutCreateWindow(b"titi")
	1
	>>> bool(GL.glGenVertexArrays)
	False
	>>> GL
	<module 'OpenGL.GL' from '/Library/Frameworks/Python.framework/Versions/
	3.3/lib/python3.3/site-packages/
	PyOpenGL-3.0.2-py3.3.egg/OpenGL/GL/__init__.py'>
	>>> GL.glGetString(GL.GL_VERSION)
	b'3.2 NVIDIA-8.16.74 310.40.00.10f02'
	>>> GL.glGetString(GL.GL_SHADING_LANGUAGE_VERSION)
	b'1.50'
	>>> bool(GL.ARB.vertex_array_object.glGenVertexArrays)
	False
	>>> from OpenGL.GL.APPLE import vertex_array_object
	>>> bool(vertex_array_object.glGenVertexArraysAPPLE)
	False
	>>> ^D

thanks,
renaud