vtkGenericRenderWindowInteractor is found in vtkmodules.vtkRenderingUI
this fixes the error found in current code: from vtkmodules.vtkRenderingCore import vtkGenericRenderWindowInteractor, vtkRenderWindow ImportError: cannot import name 'vtkGenericRenderWindowInteractor' from 'vtkmodules.vtkRenderingCore'
@mwestphal Can you review please?