[hardy] can't find an implementation for linux2 platform

Binary package hint: python-opengl

Ubuntu version: Hardy alpha5 running on Virtualbox 1.5.6 with guest addittions

Info recolected:
Distribution: Ubuntu 8.04 (hardy)
Gnome Release: 2.21.91 2008-02-13 (Ubuntu)
BugBuddy Version: 2.21.90

System: Linux 2.6.24-8-generic #1 SMP Thu Feb 14 20:40:45 UTC 2008 i686
X Vendor: The X.Org Foundation
X Vendor Release: 10400090
Selinux: No
Accessibility: Disabled
GTK+ Theme: Glider
Icon Theme: gnome

Memory status: size: 0 vsize: 0 resident: 0 share: 0 rss: 0 rss_rlim: 0
CPU usage: start_time: 0 rtime: 0 utime: 0 stime: 0 cutime:0 cstime: 0 timeout:
0 it_real_value: 0 frequency: 0

----------- .xsession-errors (9 sec old) ---------------------
    import scene.opengl
  File "/var/lib/python-support/python2.5/glchess/scene/opengl/__init__.py",
line 2, in <module>
    import OpenGL.GL
  File "/usr/lib/python2.5/site-packages/OpenGL/GL/__init__.py", line 2, in
<module>
    from OpenGL.raw.GL import *
  File "/usr/lib/python2.5/site-packages/OpenGL/raw/GL/__init__.py", line 6, in
<module>
    from OpenGL.raw.GL.constants import *
  File "/usr/lib/python2.5/site-packages/OpenGL/raw/GL/constants.py", line 7,
in <module>
    from OpenGL import platform, arrays
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/__init__.py", line 57,
in <module>
    _load()
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/__init__.py", line 53,
in _load
    sys.platform, os.name,
RuntimeError: Unable to find an implementation for the 'linux2' ('posix')
platform
--------------------------------------------------
Traceback (most recent call last):
  File "/usr/games/glchess", line 57, in <module>
    start_game()
  File "/var/lib/python-support/python2.5/glchess/glchess.py", line 20, in
start_game
    import main
  File "/var/lib/python-support/python2.5/glchess/main.py", line 27, in
<module>
    import display
  File "/var/lib/python-support/python2.5/glchess/display.py", line 9, in
<module>
    import scene.opengl
  File "/var/lib/python-support/python2.5/glchess/scene/opengl/__init__.py",
line 2, in <module>
    import OpenGL.GL
  File "/usr/lib/python2.5/site-packages/OpenGL/GL/__init__.py", line 2, in
<module>
    from OpenGL.raw.GL import *
  File "/usr/lib/python2.5/site-packages/OpenGL/raw/GL/__init__.py", line 6, in
<module>
    from OpenGL.raw.GL.constants import *
  File "/usr/lib/python2.5/site-packages/OpenGL/raw/GL/constants.py", line 7,
in <module>
    from OpenGL import platform, arrays
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/__init__.py", line 57,
in <module>
    _load()
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/__init__.py", line 53,
in _load
    sys.platform, os.name,
RuntimeError: Unable to find an implementation for the 'linux2' ('posix')
platform

gnome-games 1:2.21.91-0ubuntu1
python-opengl 3.0.0~b1-0ubuntu1
python-gtkglext1 1.1.0-3
libgtkglext1 1.2.0-0ubuntu1

Starting glchess produces the error message above.
The 3d-view option isn't checked before installation of python-opengl package