When I decided that it was time to learn Python, I wanted something to build that would help me learn the language by applying to a real program.
So I decided to create a clone of the popular "Triple Yahtzee" game.
This program is console based and uses the curses module, so it only runs on unix/linux platforms (sorry windows users).
That being said, it was also the first full program that I wrote using Python, so its not very fancy.
I licensed the code under the GNU GPL v2.
My Yahtzee code is available here