hylke@hylke-ubuntu:~$ python
Python 2.5.1c1 (release25-maint, Apr 12 2007, 21:00:25) 
[GCC 4.1.2 (Ubuntu 4.1.2-0ubuntu4)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import gtk
>>> import gksu
>>> context = gksu.Context()
>>> context.set_command("ls")
>>> context.run()
Segmentation fault (core dumped)