I wasn't able to recreate this issue e.g. the original code works fine for me.
That being said it certainly appears to be an issue affecting a lot of people: https://errors.ubuntu.com/problem/76dc05ff3a34f1b74353bf3103378e872e58dea2 There about 260 reports from 16.04 users regarding it. ** Tags added: xenial ** Changed in: update-manager (Ubuntu) Status: New => Confirmed ** Changed in: update-manager (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1703827 Title: ubuntu-support-status return "TypeError: not enough arguments for format string" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1703827/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs