Feature/python with dune 2.9
Implements the changes due to https://gitlab.dune-project.org/core/dune-common/-/merge_requests/1054 (merged). This is only related to the dune master (2.9-git).
Edited by Timo Koch
Implements the changes due to https://gitlab.dune-project.org/core/dune-common/-/merge_requests/1054 (merged). This is only related to the dune master (2.9-git).