Hello, Andreas, things are getting weared ^2 Am Sonntag, 22. November 2009 20:00:08 schrieb pycuda-request(a)tiker.net: tried it on two different consoles - one with empty $PYTHONPATH and one set as above. === case 1 ============================================== :~> echo $PYTHONPATH :~> python Python 2.5.2 (r252:60911, Jun 7 2008, 00:38:48) [GCC 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036]] on linux2 Type "help", "copyright", "credits" or "license" for more information. '/usr/local/lib64/python2.5/site-packages/pytools-9-py2.5.egg/pytools/__init__.pyc' :~/ cd test/cuda/pycuda/pycuda/examples :~/test/cuda/pycuda/pycuda/examples> python gl_interop.py Traceback (most recent call last): File "gl_interop.py", line 8, in <module> from OpenGL.GL.ARB.vertex_buffer_object import * ImportError: No module named vertex_buffer_object === case 2 ============================================== :~/test/cuda/pycuda/pycuda> echo $PYTHONPATH /usr/local/lib64/python2.5/site-packages/ :~/test/cuda/pycuda/pycuda> python Python 2.5.2 (r252:60911, Jun 7 2008, 00:38:48) [GCC 4.3.1 20080507 (prerelease) [gcc-4_3-branch revision 135036]] on linux2 Type "help", "copyright", "credits" or "license" for more information. '/usr/local/lib64/python2.5/site-packages/pytools-9-py2.5.egg/pytools/__init__.pyc' ... runnign gl_interop.py works... ================================================= so, although the $PYTHONPATH environment variable solved my python-opengl problem, there seems to be another place where the path info is kept / set. Either in some global way? but then gl_interop.py should run in case 1, too And I would consider it as bad implementation, having side effects of environment variables between different consoles. Think python itself ist quite mature, isn't it? maybe >>> import pytools already changes the path. Isn't there any python builtin way to show the module search path? and how are all the SuSE-configured modules in /usr/lib64/python2.5/site-packages/ found? but something seems already screwed on my python: looking for an answer for above question pops up an empty tk window and throws an error ($PYTHONPATH=/usr/local/lib64/python2.5/site-packages/) ===== case 2 ====================== help> modules environment Here is a list of matching modules. Enter any module name to get more help. No handlers could be found for logger "OpenGL.Tk" Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.5/site.py", line 346, in __call__ return pydoc.help(*args, **kwds) File "/usr/lib64/python2.5/pydoc.py", line 1644, in __call__ self.interact() File "/usr/lib64/python2.5/pydoc.py", line 1662, in interact self.help(request) File "/usr/lib64/python2.5/pydoc.py", line 1680, in help self.listmodules(split(request)[1]) File "/usr/lib64/python2.5/pydoc.py", line 1785, in listmodules apropos(key) File "/usr/lib64/python2.5/pydoc.py", line 1883, in apropos ModuleScanner().run(callback, key) File "/usr/lib64/python2.5/pydoc.py", line 1848, in run for importer, modname, ispkg in pkgutil.walk_packages(): File "/usr/lib64/python2.5/pkgutil.py", line 125, in walk_packages for item in walk_packages(path, name+'.', onerror): File "/usr/lib64/python2.5/pkgutil.py", line 110, in walk_packages __import__(name) File "/usr/local/lib64/python2.5/site-packages/OpenGL/Tk/__init__.py", line 114, in <module> _default_root.tk.call('package', 'require', 'Togl') _tkinter.TclError: can't find package Togl ======= case 1 ==================== help> modules environment Here is a list of matching modules. Enter any module name to get more help. Speicherzugriffsfehler :~/test/cuda/pycuda/pycuda/examples> echo $PYTHONPATH :~/test/cuda/pycuda/pycuda/examples> =======case 3===================== help> module environment no Python documentation found for 'module environment' ..... :~/test/cuda/pycuda/pycuda/examples> echo $PYTHONPATH /usr/lib64/python2.5/site-packages/,/usr/local/lib64/python2.5/site-packages/ ============================================== Obviously, only by manually restoring the supposed correct (depends?) search sequence (core system first) in $PYTHONPATH restores a working python help system. So something's going on below the hood. Would blame one of the packages I've installed in the course of testing pycuda. looking for potential suspects: :~> ls -1 /usr/local/lib64/python2.5/site-packages/ easy-install.pth matplotlib matplotlib-0.99.1.1-py2.5.egg-info mpl_toolkits OpenGL pycuda pycuda-0.93.1rc2-py2.5.egg-info pylab.py pylab.pyc PyOpenGL-3.0.1b1-py2.5.egg-info pytools-9-py2.5.egg setuptools-0.6c9-py2.5.egg setuptools.pth wx-2.8-gtk2-unicode wxaddons wxaddons-2.8.8.1-py2.5.egg-info wx.pth wxPython_common-2.8.8.1-py2.5.egg-info wxversion.py wxversion.pyc =================================================== without real knowledge, I would start to blame the OpenGL and wx-stuff first. Hope I have no crucial app on my box that relys on python. hang on .... qgis ... loading python .... looks ok. :-) So keep playing until I screw my daily work... yours Wolfgang