/usr/lib/python2.7/dist-packages/vtk/vtkIOMPIParallelPython.so is in python-vtk6 6.0.0-6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/vtk/../../../x86_64-linux-gnu/libvtkIOMPIParallelPython27D-6.0.so