The issue was somehow fixed, and calendarserver is installable on trusty (and also on precise). Marking as fixed.
** Changed in: calendarserver (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/403349 Title: calendarserver has dependency on non-existent python-xml package in karmic/lucid To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/calendarserver/+bug/403349/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs