[vtkusers] paraview 3.8.1 and numpy?

[Oliver Porth]

hi,
i am definitely a beginner in python+paraview and am getting crazy with this...

When i try to reproduce the basic tutorial from http://www.vtk.org/Wiki/ParaView/Users_Guide/Python_Calculator

i get the following error after entering and applying the expression '5' on my linux machine as well as on my mac:

Traceback (most recent call last):
  File "<string>", line 4, in <module>
  File "/home/porth/lib/paraview-3.8/site-packages/paraview/vtk/dataset_adapter.py", line 2, in <module>
    import numpy
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/__init__.py", line 136, in <module>
    import add_newdocs
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/add_newdocs.py", line 9, in <module>
    from numpy.lib import add_newdoc
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/lib/__init__.py", line 4, in <module>
    from type_check import *
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/lib/type_check.py", line 8, in <module>
    import numpy.core.numeric as _nx
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/core/__init__.py", line 8, in <module>
    import numerictypes as nt
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/core/numerictypes.py", line 469, in <module>
    _set_array_types()
  File "/home/porth/bin/numpy/lib64/python2.6/site-packages/numpy/core/numerictypes.py", line 460, in _set_array_types
    _gi = dtype('p')
TypeError: data type not understood


Have i missed something when installing numpy?  

Thanks a lot and cheers, 

oliver
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