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A very easy to use and powerful Python interface to the [http://www.libsdl.org Simple Directmedia Library] (SDL) platform independent graphic, audio and input libraries.
There are numerous examples, and the documentation is very good. You'll be surprised at how easy it is to write games or other graphics-intensive programs with it.
You can find it at http://www.pygame.org
[http://rene.f0o.com/mywiki/PythonGameProgramming Python game programming tutorial using pygame].
[http://www.scriptedfun.com/?cat=4 Pygame Video Tutorials]
[http://www.apress.com/book/view/1590598725 Beginning Game Development with Python and Pygame] -- A new book discussing game development using Pygame
See also PythonGames