How does this code work? Jeff Rush, past Python Advocacy Coordinator, organizer of the Dallas/Ft. Worth Pythoneers usergroup as well as conference co-chair of PyCon 2006 and 2007 held in Dallas. He has been providing Python and embedded Linux/robotics consulting service since 1996, ported Python to OS/2 and created the initial RPMs for Zope used by Red Hat. He also serves as a director of the Python Software Foundation and the Zope Foundation.