[vtkusers] broken vtkTkRenderWindowInteractor.py in 5.2.0?

[Alexander Pletzer]

Hi,

I have downloaded and built vtk a few weeks ago from cvs. I'm 
encountering an error I never had before, which can also be reproduced 
by running vtkTkRenderWindowInteractor.py in standalone, ie running the 
vtkRenderWindowInteractorConeExample() example:

[pletzer at localhost tmp]$ python 
/usr/lib/python2.5/site-packages/VTK-5.2.0-py2.5.egg/vtk/tk/vtkTkRenderWindowInteractor.py
Traceback (most recent call last):
  File 
"/usr/lib/python2.5/site-packages/VTK-5.2.0-py2.5.egg/vtk/tk/vtkTkRenderWindowInteractor.py", 
line 394, in <module>
    vtkRenderWindowInteractorConeExample()
  File 
"/usr/lib/python2.5/site-packages/VTK-5.2.0-py2.5.egg/vtk/tk/vtkTkRenderWindowInteractor.py", 
line 364, in vtkRenderWindowInteractorConeExample
    pane = vtkTkRenderWindowInteractor(root, width=300, height=300)
  File 
"/usr/lib/python2.5/site-packages/VTK-5.2.0-py2.5.egg/vtk/tk/vtkTkRenderWindowInteractor.py", 
line 48, in __init__
    vtkLoadPythonTkWidgets(master.tk)
  File 
"/usr/lib/python2.5/site-packages/VTK-5.2.0-py2.5.egg/vtk/tk/vtkLoadPythonTkWidgets.py", 
line 54, in vtkLoadPythonTkWidgets
    if len(path) > 0 and path[0] == '{' and path[-1] == '}':
TypeError: object of type '_tkinter.Tcl_Obj' has no len()


 >>> v = vtk.vtkVersion()
 >>> print v.GetVTKVersion()
5.2.0


Any suggestion would be welcome. Thanks for your help.

--Alex