This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.
Python Imaging Library (PIL)
Adds image processing capabilities to the Python interpreter.
The library supports many file formats, and provides image processing and graphics capabilities.
The current free version is PIL 1.1.7 (2009-11-15)
Supported Python-Versions: 1.5.2 and newer, including 2.5 .. 2.7.