Configured with VTK_MODULE_USE_EXTERNAL_VTK_mpi4py=ON VTK still installs mpi4py
With VTK_MODULE_USE_EXTERNAL_VTK_mpi4py=ON
configure complains when there is no external mpi4py.
But when the external mpi4py is present VTK still installs mpi4py which causes a conflict.
Version: 9.1.0