Python install dir: site-package vs dist-packages
The installation directory of all Python files are fixed to
site-packages right now; see, e.g., https://gitlab.kitware.com/vtk/vtk/blob/master/Utilities/Python/CMakeLists.txt#L35. This is a sane default choice.
When packaging VTK for Debian, we need to patch VTK to use
dist-packages instead (as per Debian convention). It'd be great if this was configurable via a CMake variable (e.g.,
PYTHON_PACKAGE_DIRECTORY_SUFFIX) -- with a default of
site-packages of course.