It seems very unlikely that this bug would be in update-notifier itself, since the python code there is straightforward and only calls into update-manager and python-apt. So the bug is probably in one of those components.
As Seb mentions, the output of an upgrade would be helpful here; and possibly an apt-clone of the affected system. Is this problem reproducible in 16.04? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1595154 Title: Wrong result/count in update-notifier depending of the python version To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-notifier/+bug/1595154/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
