Ubuntu
pyopengl package

keyjnote exits with OpenGL error

Bug #211962 reported by levien on 2008-04-04

This bug affects 4 people

Affects		Status	Importance	Assigned to	Milestone
	pyopengl (Ubuntu)	Triaged	High	Unassigned
	python2.6 (Debian)	Fix Released	Unknown	debbugs #509821

Bug Description

Binary package hint: keyjnote

I'm trying to run keyjnote on the most current Ubuntu server 8.04 beta. Xorg is running fine, Xpdf works fine, glxinfo reports a working GL environment (albeit software rendering), glxgears runs fine, yet keyjnote always gives me the following error:

Welcome to KeyJnote version 0.10.2
Traceback (most recent call last):
  File "/usr/bin/keyjnote", line 160, in <module>
    from OpenGL.GL import *
  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 40, in _load
    plugin_class = _findPlatform( platform )
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/__init__.py", line 28, in _findPlatform
    return entrypoint.load()
  File "/usr/lib/python2.5/site-packages/pkg_resources.py", line 1912, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/glx.py", line 8, in <module>
    class GLXPlatform( baseplatform.BasePlatform ):
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/glx.py", line 16, in GLXPlatform
    mode=ctypes.RTLD_GLOBAL
  File "/usr/lib/python2.5/site-packages/OpenGL/platform/ctypesloader.py", line 42, in loadLibrary
    return dllType( name, mode )
  File "/usr/lib/python2.5/ctypes/__init__.py", line 348, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: ('GL: cannot open shared object file: No such file or directory', 'GL', None)

It seems that python cannot find the OpenGL library, but I don't know anything about Python so I'm having a hard time figuring out what's causing this...

Related branches

lp:ubuntu/lucid/python2.5

Revision history for this message

Stéphan Kochen (stephank) wrote on 2008-05-05:

I had a similar problem trying to run a Python-based OpenGL application on a minimal install.

It turns out, the Python OpenGL module uses the ctypes module to find libGL, which in turns relies on binutils' objdump.

Try installing the binutils package, and see if this solves your problem.

Revision history for this message

Daniel T Chen (crimsun) wrote on 2008-12-07:

Is this symptom still reproducible in 8.10 or 9.04?

Changed in keyjnote:
status:	New → Incomplete

Revision history for this message

David Herbert (david-webmast) wrote on 2008-12-26:

Same problem with Impressive 0.10.2r-2 on Debian Lenny, installing binutils fixed it, reported as Debian bug #509821.

Revision history for this message

Lino Mastrodomenico (l-mastrodomenico) wrote on 2009-04-30:

I still see a problem very similar to this in Ubuntu 9.04.

Running:

python -c 'import OpenGL.GL'

produces an error very similar to the one reported.

Installing binutils didn't fix this for me. I think this is the same as bug #334213. See that bug for two possible workarounds.

Revision history for this message

Stani (stani) wrote on 2009-05-04:

binutils fixed keyjnote for me on ubuntu intrepid

Revision history for this message

Paolo Sammicheli (xdatap1) wrote on 2009-06-12:

Fixed in Debian with Python 2.5.2-15

Changed in keyjnote (Ubuntu):
status:	Incomplete → Confirmed

Revision history for this message

Luca Falavigna (dktrkranz) wrote on 2009-06-12:

We could consider to backport changes for both python2.5 and python2.6

affects:	keyjnote (Ubuntu) → python2.6 (Ubuntu)
Changed in python2.6 (Ubuntu):
importance:	Undecided → High
status:	Confirmed → Triaged

Revision history for this message

Iain Harris (iain-harris) wrote on 2009-07-25:

I'm gettin the same (or similar) error on OS X with Python 2.6 and the latest PyOpenGL:-

>>> import OpenGL.GL
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/GL/__init__.py", line 2, in <module>
    from OpenGL.raw.GL import *
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/raw/GL/__init__.py", line 6, in <module>
    from OpenGL.raw.GL.constants import *
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/raw/GL/constants.py", line 7, in <module>
    from OpenGL import platform, arrays
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/__init__.py", line 36, in <module>
    _load()
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/__init__.py", line 27, in _load
    plugin_class = plugin.load()
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/plugins.py", line 14, in load
    return importByName( self.import_path )
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/plugins.py", line 28, in importByName
    module = __import__( ".".join(moduleName), {}, {}, moduleName)
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/glx.py", line 8, in <module>
    class GLXPlatform( baseplatform.BasePlatform ):
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/glx.py", line 16, in GLXPlatform
    mode=ctypes.RTLD_GLOBAL
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/ctypesloader.py", line 53, in loadLibrary
    return dllType( name, mode )
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/ctypes/__init__.py", line 353, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: ('dlopen(GL, 10): image not found', 'GL', None)

I'm gettin the same (or similar) error on OS X with Python 2.6 and the latest PyOpenGL:-

>>> import OpenGL.GL
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/GL/__init__.py", line 2, in <module>
    from OpenGL.raw.GL import *
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/raw/GL/__init__.py", line 6, in <module>
    from OpenGL.raw.GL.constants import *
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/raw/GL/constants.py", line 7, in <module>
    from OpenGL import platform, arrays
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/__init__.py", line 36, in <module>
    _load()
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/__init__.py", line 27, in _load
    plugin_class = plugin.load()
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/plugins.py", line 14, in load
    return importByName( self.import_path )
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/plugins.py", line 28, in importByName
    module = __import__( ".".join(moduleName), {}, {}, moduleName)
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/glx.py", line 8, in <module>
    class GLXPlatform( baseplatform.BasePlatform ):
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/glx.py", line 16, in GLXPlatform
    mode=ctypes.RTLD_GLOBAL 
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/OpenGL/platform/ctypesloader.py", line 53, in loadLibrary
    return dllType( name, mode )
  File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/ctypes/__init__.py", line 353, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: ('dlopen(GL, 10): image not found', 'GL', None)

Revision history for this message

Matthias Klose (doko) wrote on 2009-09-13:

reassigning to pyopengl.

affects:

python2.6 (Ubuntu) → pyopengl (Ubuntu)

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Hugo Roy (hugoroy) wrote on 2009-11-12:

#10

I still have the problem with Karmic Koala. 'binutils' is already installed.

Revision history for this message

Stani (stani) wrote on 2010-02-06:

#11

I think this is a duplicate of https://bugs.launchpad.net/ubuntu/+source/fretsonfire/+bug/357076

This solution solved it for me:
sudo ln -s /usr/lib/libGL.so.1 /usr/lib/libGL.so

Besides it is not a bug in impressive or fretsonfire... it is a bug in python-opengl which is reproducable by:
$ python
>>> from OpenGL.GL import *

Bug Watch Updater (bug-watch-updater) on 2011-08-11

Changed in python2.6 (Debian):
status:	Unknown → Fix Released

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keyjnote exits with OpenGL error

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