Pygame

I've written two games in python with pygame module for my classes at university. They are clones of well known titles - SpaceInvaders and Arkanoid. Pygame is quite nice wrapper for well known SDL library, designed for writting 2d games. Unfortunately it has poor performance due to problems with (the lack of) hardware acceleration. Python isn't the demon of speed too. However, it is very intuitive and simple to learn. Just enough for prototyping and simple applications.

To run the games you need 32-bit version of python3.2 and appropriate version of pygame.