I've received a proof copy of the book from CreateSpace.com a few weeks ago...
Version 9 of the PDF is available, which includes several typo corrections and a completed table of contents.
From 2008 to 2009, I wrote a book called “Invent Your Own Computer Games with Python” ( http://inventwithpython.com ) which guides young adults and complete beginners through learning how to program in the Python language. I’ve just completed the second edition of the book, which has been an exhausting amount of work. Looking back over it, I realized that it could have been a much less exhausting experience if I had made some simple preparations.
Here's all the new stuff that went into the second edition of "Invent Your Own Computer Games with Python".