Render() causes a non responding Visualization Toolkit - Win32OpenGL on Windows

Just use Interact() instead of Render()

eg:

>>> from paraview.simple import *
>>> Cone()
<paraview.servermanager.Cone object at 0x7f30cc989c90>
>>> Show()
<paraview.servermanager.GeometryRepresentation object at 0x7f30cc989d90>
>>> Interact()
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