[Fwd: Re: [vtkusers] VTK 4.2.2 with Python 2.3 on OS X]

[Karl Garsha]

-------- Original Message --------
Subject: 	Re: [vtkusers] VTK 4.2.2 with Python 2.3 on OS X
Date: 	Sun, 03 Aug 2003 16:15:54 -0500
From: 	Karl Garsha <garsha at itg.uiuc.edu>
To: 	Robb Brown <brownr at ucalgary.ca>
References: 	<52AC0BB5-C44F-11D7-8E5A-000A959032C4 at ucalgary.ca>



Actually I've been wrestling with the same problem over the past week. 
The 2.3 Python build is better integrated with the native windowing 
system and wxPython works better, but, much to my disappointment, there 
is some sort of linking issue when I try to import vtk from the 
interpreter.  The 2.2.3 build of Python works fine with VTK+Python on OS 
X, but the Python GUI API's aren't as well integrated as with 2.3.  I 
would also appreciate any ideas as to how to straighten out this 
issue--I wish I could provide you with an answer.
-Karl

Robb Brown wrote:

> Has anyone gotten VTK running with Python 2.3 on OSX?  The switch from  
> Python 2.2 to 2.3 appears to break VTK's wrapping.  When doing an  
> "import vtk" here's the error:
> 
> 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 vtk
> Traceback (most recent call last):
>   File "<stdin>", line 1, in ?
>   File  
> "/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
> packages/vtk_python/vtk/__init__.py", line 8, in ?
>     from filtering import *
>   File  
> "/Library/Frameworks/Python.framework/Versions/2.3/lib/python2.3/site- 
> packages/vtk_python/vtk/filtering.py", line 7, in ?
>     from libvtkFilteringPython import *
> ImportError: Failure linking new module: : dyld:  
> /Library/Frameworks/Python.framework/Versions/2.3/Resources/Python.app/ 
> Contents/MacOS/Python Undefined symbols:
> _PyArg_VTKParseTuple
> _PyVTKClass_Check
> _PyVTKClass_New
> _PyVTKClass_vtkCollectionNew
> _PyVTKClass_vtkDataObjectNew
> _PyVTKClass_vtkImplicitFunctionNew
> _PyVTKClass_vtkLocatorNew
> _PyVTKClass_vtkObjectNew
> _PyVTKClass_vtkPointLocatorNew
> _PyVTKClass_vtkScalarsToColorsNew
> _PyVTKClass_vtkSourceNew
> __Z19vtkPythonCheckArrayP7_objectiPfi
> __Z19vtkPythonCheckArrayP7_objectiPi
>  >>>
> 
> 
> vtkCommon is built, and is accessible (in the same place as all the  
> other libraries).  It's been suggested on the Python list this might be  
> due to VTK's use of -flat_namespace.  Does anyone have any thoughts?
> 
> Build was with GCC 3.1 (same as Python) and VTK using Carbon.
> 
> Thanks,
> 
> Robb
> 
> _____________________________
> Robb Brown
> Seaman Family MR Center
> Calgary, AB
> 
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-- 
Karl Garsha
Light Microscopy Specialist
Imaging Technology Group
Beckman Institute for Advanced Science and Technology
University of Illinois at Urbana-Champaign
405 North Mathews Avenue
Urbana, IL 61801
Office: B650J
Phone: 217.244.6292
Fax: 217.244.6219
Mobile: 217.390.1874
www.itg.uiuc.edu