isnt this a duplicate of https://bugs.launchpad.net/ubuntu/+source/hplip/+bug/86893 ? It surely is, when you do not have python-qt3 installed.
isnt this a duplicate of https:/ /bugs.launchpad .net/ubuntu/ +source/ hplip/+ bug/86893 ? It surely is, when you do not have python-qt3 installed.