Well, you can..
- Take a look at other Python projects (for example at Github, learn from it, why/how it works (or perhaps find some bugs and contribute back – perhaps you have to learn Git first before you can do that, which I strongly recommend)
- Why not start a web project? You can use a django web framework to show something fancy to the world (a simple game written in Python for example)
- Design some useful software you probably need it now or in the near future
- Or just learn other languages, like Haskell, which is completely different from other, courrant programming languages
- …
solved What I do next with python? [closed]