Web resources:

Python.org:

• The Python.org documents section
  • Current Python 2.x documentation
  • Current Python 3.x documentation
• Python Wiki at python.org
  • Python IDEs

Online books:

• Dive into Python by Mark Pilgrim, a free book published under GNU Free Documentation License, with around 100 000 words
• Text Processing in Python, a book by David Mertz, published by Addison Wesley
• Introduction to Python Programming with NCLab, a book available as a single PDF, with around 44 000 words
• Invent Your Own Computer Games with Python - A complete eBook for total beginners available for free under a Creative Commons license.
• Making Games with Python & Pygame - A Creative Commons-licensed book that covers the Pygame library.
• Hacking Secret Ciphers with Python - A Creative Commons-licensed book for complete beginners with a focus on cryptography.

Various:

• Python Programming Tutorials -- a list of Python tutorials
• ActiveState Python Cookbook -- a collection of Python recipes
• Dev Shed's Python Tutorials -- a collection of Python articles
• Python Tutorials at awaretek.com
• Python 101 -- Introduction to Python by Dave Kuhlman, around 9000 words
• Category:Python, rosettacode.org

• Book:Python Programming