Reviewing the patch, looks like it's not complete, there are some leftover "import six", in mediafile.py:55 or in test/test_mediafile_edge.py:26 and test/test_mediafile.py:24

It's working because the python-six module is installed as a dependency of python-flit.

Another thing that we can improve in this package is to depend on python-flit-core instead of python-flit and remove python-setuptools dependency.

And they are using pytest for testing upstream, so maybe it's worth to chagne from pyunittest now.

superseded by 1082753