I've heard good things about http://www.amazon.com/gp/product/0982106017?ie=UTF8&tag=playwithpyth-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=098210601

I've heard good things about http://www.amazon.com/gp/product/0982106017?ie=UTF8&tag=playwithpyth-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0982106017 http://www.amazon.com/gp/product/0982106017?ie=UTF8&tag=... (I've left in the author's affiliate link), which is also online at http://inventwithpython.com/chapters http://inventwithpython.com/chapters.