Check python package installations in CMake
I had to install some python packages during the CMake step via
execute_process(COMMAND ${DUNE_PYTHON_VIRTUALENV_EXECUTABLE} -m pip install jinja2 pytest-cov ipywidgets k3d xmljson
vtk lxml loguru)
I am not very familiar with the python setup, so you should check if we really want to do this in CMake or if there are some python dependencies missing somewhere else, @r_milk01, @falbr_01.