This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I'm a fan of Think Python. It's a free PDF and soon you will be able to purchase the hard copy.
If you want to get deeper into the language, the Programming Python book covers all sorts of interesting applications.
Just an FYI, the Python API just had a major upgrade which is not backward compatible with earlier versions. You may run into examples in those and other Python books which don't run in 3.0 but may run in 2.6.