In my use on OSX, python3, there were encoding issues in setup.py for the older ghp-import during pip install. ghp-import2 is supposed to fix that and other packaging issues so I'm hoping you can upgrade.
I've made the appropriate change in requirements-extras.txt, and tried to run tests. I immediately hit a problem related to parsing the results of
I see other test failures due to temporary directories ('/var/folders') and hyphenator.
Can you test this PR in your environment, and merge it if it works for you. Sorry, don't have time to fix anymore tests at the moment.