The code doesn't look very clean, the path is hard-coded. Hence this change solve the problem:
$ diff labyrinth labyrinth-ok 39c39 < sys.path.insert(0, abspath("/usr/lib/python2.4/site-packages/labyrinth")) --- > sys.path.insert(0, > abspath("/usr/lib/python2.5/site-packages/labyrinth")) -- 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