PyGtk is a set of Python bindings to the popular GIMP Toolkit. It provides a object oriented interface that is slightly higher level than the C one. It is simple to install on Unix, win32 installer versions are available, and Mac OS X versions are in development.
[http://www.gtk.org/ GTK+ web site]
[http://www.daa.com.au/~james/pygtk/ PyGtk site]
[ftp://ftp.gtk.org/pub/gtk/python/ Download the latest version]
[http://www.moeraki.com/pygtktutorial/index.html PyGtk Tutorial]
[http://www.moeraki.com/pygtkreference/index.html PyGtk 2.0 Reference Manual]
[http://www.pcpm.ucl.ac.be/~gustin/win32_ports Port or PyGtk libraries to win32]
[http://www.dropline.net/gtk/ GTK+ for win32]
[http://www.async.com.br/projects/kiwi KiWi] is a set of classes and wrappers for PyGTK that were developed to provide a sort of framework for applications. Roughly modelled on Smalltalk's MVC, Kiwi intention is becoming a simple way to make a UI.