No module 'pyvtk' error in 'test_tetgen.py'

[somada141]

Both the 'test_tetgen.py' and 'test_tetgen_2.py' examples/tests try to use 'pyvtk' (which isn't listed as a dependency in the setup.py) and throw a 'No module named pyvtk' exception.

The import is only located under the 'tet.py' file in the 'MeshInfo' class and the 'write_vtk' method.

Any plans on updating meshpy to work with an existing installation of VTK or perhaps PyEVTK?

[inducer]

You'll only need pyvtk for writing out VTK files (which is somewhat unrelated to mesh generation), so I don't see why pyvtk should be a hard dependency.