This is reproducable by raising an AssertionError in the initialization of MyCache and looks like a problem with "UpdateManager/backend/__init__.py" carrying on when cache is set to None. Here are the lines of code I'm looking at:
except Exception as e: logging.debug("error reading cache (%s)" % e) cache = None -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880987 Title: /usr/bin/update- manager:TypeError:_on_finished:_action_done:get_deb2snap_dups:_on_finished:_action_done:get_deb2snap_dups To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1880987/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs