Pygame-tictactoe is a project mainly written in Python, it's free.
My first attempts to learn the basics of Pygame
Uh, in a recent drive to become better acquainted with both Python and Pygame I've decided to make a new trivial video game each week. I've started with Tic-Tac-Toe because the mechanics are pretty simple both in terms of the AI required and the graphics.
Graphics aren't really my strong-point, as you can probably tell from the stuff in the resources folder.