David, Check this http://groups.google.com/group/comp.lang.python/browse_frm/thread/a96176dc9f3a83c9/ea6b8addfc702605#ea6b8addfc702605
It may help
David, Check this http://groups.google.com/group/comp.lang.python/browse_frm/thread/a96176dc9f3a83c9/ea6b8addfc702605#ea6b8addfc702605
It may help