Following #6496 , this PR adds new getters to the python API, as well as tests for them. This makes toPythonObj simpler.
A future PR will add more getters to the python API.
Co-authored-by: Gereon Kremer nafur42@gmail.com
If building with python bindings, check the pytest is installed, and adds a command to run pytest after the existing make check tests. If built without python bindings, it just uses a null command. Note: the current semantics are such that the pytest tests will not run if the ctest run fails (unless you pass the correct flag to make to continue --ignore-errors I believe). I can look into changing this semantics if that would be preferred.
