Control: reopen -1 This bug was closed, but the package has still some dependencies towards Python2 packages, in details:
(source:python-msgpack)Build-Depends->cython (source:python-msgpack)Build-Depends->python-all-dev (source:python-msgpack)Build-Depends->python-pytest (source:python-msgpack)Build-Depends->python-setuptools Re-opening, so that they can be taken care of.