I don't think that's a reasonable excuse. Mark Lutz's Learning Python does a very good comparison of a lot the features in the language as they are implemented

I don't think that's a reasonable excuse. Mark Lutz's Learning Python does a very good comparison of a lot the features in the language as they are implemented in both python 2.6 and 3.x. That book was released in September 2009: http://shop.oreilly.com/product/9780596158071.do http://shop.oreilly.com/product/9780596158071.do Edit: Actually, while reading one of the sample chapters it becomes apparent that this book is more of a general introduction to programming than a book about learning Python. I also noticed that there are a few notes sprinkled here and there about changes in python 3.0. So I withdraw my previous criticism. Also: kudos for getting the SouthPark reference about the rectal probe in there :)