python2.6-dbg crashed with SIGSEGV in glGetError()

Binary package hint: python-opengl

python segfaults when i try to run an opengl application. This crash report is produced running the code in the attachment (using python-dbg), but also other pieces of code fail (including examples on NeHe)

some system info:
Description: Ubuntu 9.04
Release: 9.04

python:
  Installed: 2.6.1-0ubuntu9
  Candidate: 2.6.1-0ubuntu9
  Version table:
 *** 2.6.1-0ubuntu9 0
        500 http://nl.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status

python-opengl:
  Installed: 3.0.0~b6-3
  Candidate: 3.0.0~b6-3
  Version table:
 *** 3.0.0~b6-3 0
        500 http://nl.archive.ubuntu.com jaunty/universe Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/bin/python2.6-dbg
Package: python2.6-dbg 2.6.2~rc1-0ubuntu2
ProcCmdline: python2.6-dbg rot_cube.py
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 LANGUAGE=
Signal: 11
SourcePackage: python2.6
StacktraceTop:
 glGetError () from /usr/lib/libGL.so.1
 ffi_call_SYSV ()
 ffi_call (cif=0xbfa8d130, fn=0xb7d26190 <glGetError>,
 _call_function_pointer (flags=4353,
 _CallProc (pProc=0xb7d26190 <glGetError>,
Title: python2.6-dbg crashed with SIGSEGV in glGetError()
Uname: Linux 2.6.28-11-generic i686
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare