Comment 2 for bug 519751

After today's dist-upgrade with the new KDE 4.4 packages, the problem persists (with new version numbers).

$ sudo apt-get install python-qt3
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  python-qt3: Depends: python-sip4 (<= 4.10) but 4.10.0-2ubuntu2~karmic1~ppa2 is to be installed

$ apt-cache policy python-qt3
python-qt3:
  Installed: (none)
  Candidate: 3.18.1-1ubuntu1
  Version table:
     3.18.1-1ubuntu1 0
        500 http://it.archive.ubuntu.com karmic/main Packages

$ apt-cache policy python-sip4
python-sip4:
  Installed: 4.10.0-2ubuntu2~karmic1~ppa2
  Candidate: 4.10.0-2ubuntu2~karmic1~ppa2
  Version table:
 *** 4.10.0-2ubuntu2~karmic1~ppa2 0
        500 http://ppa.launchpad.net karmic/main Packages
        100 /var/lib/dpkg/status
     4.10.0-0ubuntu1~karmic1~ppa1 0
        500 http://ppa.launchpad.net karmic/main Packages
     4.9.1-snapshot-20091015-0ubuntu1 0
        500 http://it.archive.ubuntu.com karmic/main Packages