I'm not sure if this will work in all cases or if it is the best way to solve this issue, but attached is a patch I created that worked for me.
** Attachment added: "changes the hard coded python path to one that should change with the version of python installed" http://librarian.launchpad.net/6560294/labyrinth.diff -- Can't open the sucsessfully installed "Labyrinth Mind-mapping" https://launchpad.net/bugs/86503 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs