[vtk-developers] BUG? Abstract classes not "available" under Python
prabhu_r at users.sf.net
Tue Jul 5 09:16:13 EDT 2005
With VTK-Python from CVS I notice that abstract classes are not made
available to the user in the vtk namespace. For example under Python
vtk.vtkObjectBase is not available. Earlier one could do this:
This is no longer possible. However, with Python the bases are always
accessible, which means one could do the following:
(<vtkclass libvtkCommonPython.vtkObjectBase at 0x4046a410>,)
and still get to the vtkObjectBase class.
If one wants to organize/sort the VTK class hierarchy in Python, not
having vtk.vtkObjectBase is a pain. Not having the abstract bases in
the module is IMHO quite unPythonic. This also precludes the
possibility of someone deriving from an abstract base class. I admit
that this is probably an unlikely scenario but in some of my code I
parse the entire VTK class hierarchy and not having the bases in the
vtk module namespace is a pain. This also breaks backwards
compatibility and I am not sure if there are others who rely on the
availability of these classes.
Can this behavior be changed? What do the others think?
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