If there are only comments in the file it will still result in an error: "E: Unable to parse package file /etc/apt/preferences (1)". In my opinion apt should handle this file like an empty file in this case.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/83337 Title: apt preferences file should allow comments (#) (was: [apport] update- manager crashed with SystemError in open()) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/83337/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs