This is my work on the examples in the learning python book. This may have no interest to you or it may be helpful if you are getting stuck on one of the exercises. The version of the book these examples are from is the second edition. Here is a link to the book on Amazon. It should be noted that I am not the author (Mark Lutz) nor do I have any association with him other than having read and enjoyed his book.
If you see any errors, improvements, or anything else feel free to drop me a line.