Python for Software Design: How to Think Like a Computer Scientist:

Python for Software Design is a concise introduction to software design using the Python programming language. The focus is on the programming process, with special emphasis on debugging. The book includes a wide range of exercises, from short examples to substantial projects, so that students have ample opportunity to practice each new concept.

to download follow the link below:

http://rapidshare.com/files/250876933/Python_Soft_Des.RAR