Programming Python: Powerful Object-Oriented Programming: Mark Lutz: 8601400192511: Amazon.com: Books

This is a real mega-work on advanced topics and implementations in Python. My only reservation is one I have about all his books, that language gets very contorted and unclear in the middle of things that need elucidation. Sometimes I'm unsure I've read something more than gibberish. Often he could explain things in a far simpler way. His drive to appease different computer-language religions and Python versions generates a lot of clutter in the learning process.