Found it: Package **python-backports.functools-lru-cache** does not contain the necessary file /usr/lib/python2.7/dist-packages/backports/__init__.py
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1764823 Title: [bionic] python-matplotlib import fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/matplotlib/+bug/1764823/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs