Easy introduction to the Python
logging module by its author. Short version: it's great.
Webstemmer is a web crawler and HTML layout analyzer that automatically extracts main text of a news site without having banners, ads and/or navigation links mixed up.
It's a brilliant/evil hack; it works by getting the expression source from the frame and building an AST from it. Lazyweb request: LINQ. (PyNQ?) ;)