This is a collection of real world python projects written in 500 lines or less.
https://github.com/aosabook/500lines
The goal was to be a resource for intermediate python developers to be able to look at real world applications. Hope this helps.
That's a great idea. I've recently started browsing through some of the top-voted questions and answers at http://codereview.stackexchange.com/ to see how coding / scripting can be improved.
Edit: After browsing through the list of projects, I found three which were both interesting / useful to me and (just about) within my abilities:
* Guido van Rossum’s web-site crawler
* Ned Batchelder’s template engine
* Malini Das’ simple Continuous Integration system