What is the best Python book?

I have been downloading programs for Linux and I have found something out. A lot of GUI apps such as AWN and Screenlets use Python as the default programming language to make new applets/screenlets. I wanted to learn how to do this as I am relatively new to programing. I was wondering what the best Python books were, for both newbies and experts/advanced programmers.
Thx all.

NOTE: This is not advertising for any books, it is just a handy reference for Python books.

You can go to the official Python site. Look for the documents, especially take the Python tutorial. T hen read the other materials on the site. Enjoy.

Book recommendations are perfectly OK, don't worry.