[PyOpenGL-Users] PyOpenGL, GLUT, and MacOS X

[T.J. Jankun-K. <tj...@ac...>]

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Greetings,

I am using PyOpenGL 2.0.1.04 on Mac OS X 10.2 and Python 2.3  
(MacPython). When using some of the demos, I notice errors appear. For  
example, when running the demo in Demo/twburton:
#  pythonw knot.py
Traceback (most recent call last):
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/OpenGL/Demo/twburton/knot.py", line 239, in ?
     views.append(knotView(file))
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/OpenGL/Demo/twburton/knot.py", line 115, in __init__
     self.knot = loadKnot(filename)
   File  
"/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
packages/OpenGL/Demo/twburton/knot.py", line 18, in loadKnot
     f = open(filename)
IOError: [Errno 2] No such file or directory: '8.10'

However, there is a file called 8.10 that exists. Upon further  
experimentation, I discovered the following.  Say I start python from  
my home directory:
# python
Python 2.3 (#2, Jul 30 2003, 11:45:28)
[GCC 3.1 20020420 (prerelease)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
 >>> import os,sys
 >>> os.system('pwd')
/Users/tjk
0
 >>> from OpenGL.GLUT import *
 >>> glutInit(sys.argv)
['']
 >>> os.system('pwd')
/usr/local/bin
0
 >>>

I.e., after I run glutInit, the path has changed, so references to  
files in the "current" (current before the call to glutInit) will fail.

Is this supposed to happen? Or is this a bug? Any quick workarounds?

Thanks.

TJK

- --
Dr. T.J. Jankun-Kelly
Assistant Professor (Information and Scientific Visualization)
Computer Science and Engineering, Mississippi State University
http://www.cse.msstate.edu/~tjk/

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