This bug is related to Bug 887349 after all. The offending file, /usr/lib/python2.7/dist- packages/papyon/service/AddressBook/ab.py is from the python-papyon package.
$ dpkg -S /usr/lib/python2.7/dist-packages/papyon/service/AddressBook/ab.py python-papyon: /usr/lib/python2.7/dist-packages/papyon/service/AddressBook/ab.py -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to empathy in Ubuntu. https://bugs.launchpad.net/bugs/887380 Title: Empathy won't connect to Windows Live (MSN) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/empathy/+bug/887380/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs