Also met by other users: https://ubuntuforums.org/showthread.php?t=2377307&s=08fd9a4ad7a9437f3a79b564f0850184
Traceback (most recent call last): File "/usr/lib/update-notifier/package-data-downloader", line 26, in <module> import debconf ModuleNotFoundError: No module named 'debconf' -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1731334 Title: update-notifier-common upgrade :debconf.py not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1731334/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs