The version of the book you have is old, there's now a 2nd Edition that has new content, including 5 new exercises with 3 of them teaching you web application development. Check it Out.
You probably came to this site looking for another page from the 1st Edition of the book. It's one of these two:
There weren't any other pages in the old wiki.
The book is very simple:
Each exercise is one or two pages and follows the exact same format. You type each one in (no copy-paste!), make it run, do the extra credit, and then move on. If you get stuck, at least type it in and skip the extra credit for later.
This book teaches a lot more than the basics of programming, and python. It teaches important life skills in every facet of life: attention to detail, persistence & that dedicated practice and application lead to results. —taotetek