https://bugzilla.wikimedia.org/show_bug.cgi?id=66442
--- Comment #2 from Merlijn van Deen valhallasw@arctus.nl --- Oh, wait. It's because of -dir:/home/vagrant/.pywikibot. If you want to use that syntax (i.e. changing the place where user-config.py is stored), please use core and not compat.