*[Hacking Secret Cyphers with Python](http://inventwithpython.com/hacking/chapters/) - Al Sweigart
*[Hacking Secret Cyphers with Python](http://inventwithpython.com/hacking/chapters/) - Al Sweigart
*[Hitchiker's Guide to Python!](http://docs.python-guide.org/en/latest/)
*[Hitchiker's Guide to Python!](http://docs.python-guide.org/en/latest/)
*[How to Think Like a Computer Scientist: Learning with Python](http://www.greenteapress.com/thinkpython/thinkCSpy/)
*[How to Think Like a Computer Scientist: Learning with Python](http://www.greenteapress.com/thinkpython/thinkCSpy/)
*[How to Think Like a Computer Scientist: Learning with Python, Interactive Edition](http://interactivepython.org/courselib/static/thinkcspy/index.html)
*[Introduction to Programming Using Python](http://python-ebook.blogspot.com) - Cody Jackson
*[Introduction to Programming Using Python](http://python-ebook.blogspot.com) - Cody Jackson
*[Invent Your Own Computer Games With Python](http://inventwithpython.com/chapters/) - Al Sweigart
*[Invent Your Own Computer Games With Python](http://inventwithpython.com/chapters/) - Al Sweigart
*[Learn Python The Hard Way](http://learnpythonthehardway.org/book/)
*[Learn Python The Hard Way](http://learnpythonthehardway.org/book/)