Port a Pyhton 2.x library to Python 3.x. Take PIL (Python image library) for example, this is a great image processing library that seems to stagnate in the 2.x

Port a Pyhton 2.x library to Python 3.x. Take PIL (Python image library) for example, this is a great image processing library that seems to stagnate in the 2.x world for a few years. It will be fun and you will learn a lot. If this seems too difficult, then take a good introductory book like "Invent Your Own Computer Games with Python" and implement by yourself all the include projects.