general
- python.org: Home of the Python Programming Language
- Python Challenge: Prove your python skills
- Python 2.5 Quick Reference (aka. cheat sheet)
- Vault of Parnassus: Python Resources (module database)
- python.org's own module database
- pythonware.com/daily: tons of interesting python related links, updated daily
- Google Codesearch: Search public source code
learning
- The python.org wiki: a good starting point for neophytes and advanced coders alike
- How to Think Like a Computer Scientist: Learning Programming with Python (mirror)
- The Python Tutorial: "introduces many of Python's most noteworthy features, and will give you a good idea of the language's flavor and style."