The Python Standard Library

Abstraction: Python 2 standard library reference index covering all built-in modules

Key points:

• Comprehensive reference for Python 2's standard library: built-in functions, types, exceptions, and ~40 categorized module sections
• Includes built-in C modules (file I/O, OS access) plus pure-Python modules for standardized solutions; abstracted via platform-neutral APIs for portability
• Key sections: string services, data types, numeric/math modules (including itertools), file/directory access, data persistence (pickle, sqlite3), networking, internet protocols, XML/HTML parsing, development tools (unittest, doctest, 2to3)
• Platform-specific sections for Windows, Unix/POSIX, Mac OS X, SGI IRIX, and SunOS
• Python Package Index (PyPI) hosts thousands of additional third-party components beyond the standard library

Connections: Python · Python · Standard Library · Software Documentation

Source: http://docs.python.org/2/library/