Packt Publishing have just published “Artificial Intelligence with Python” by Prateek Joshi. I was the technical editor.
The book serves as a good introduction to a wide range of AI techniques and Python libraries. Due to this breadth of coverage, there isn’t the space for really in-depth discussion of individual techniques, but the book should serve to point you in the right direction as to which algorithms to use, and which libraries are available to implement them.
I’ve been involved in a few Packt books now. Some have been better than others. I think this is one of the good ones.