It happens only for upgrades, not new installations. So a workaround is to remove the package and reinstall it.
-- Installing bzrtools1.3 for Hardy from the bzr PPA causes a pycentral traceback https://bugs.launchpad.net/bugs/210168 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs