[[http://www.activestate.com/activepython|ActivePython|title=ActivePython]] from ActiveState is a commercial-grade, quality-assured Python distribution focusing on easy installation and cross-platform compatibility on Windows, Linux, Mac OS X, Solaris, HP-UX and AIX. It includes numerous useful modules in addition to the standard libraries and allows for quick installation of additional modules via [[http://docs.activestate.com/activepython/2.7/pypm.html|PyPM (Python Package Manager)]]. 

[[http://code.activestate.com/pypm/|PyPM Index]] shows which modules are available on various platforms, and allows you to search by package name, author, tag, or what the module imports.

Several versions of ActivePython are available:

 * [[http://www.activestate.com/activepython/downloads|Community Edition]]: Free distribution, ideal for community developers with open source projects.
 * [[http://www.activestate.com/business-edition|ActivePython Business Edition]]: For SMB and government with business critical applications. Per-server licensing and support.
 * [[http://www.activestate.com/enterprise-edition|ActivePython Enterprise Edition]]: For large enterprises with mission critical applications. Customizable support program and optional legal indemnification.
 * [[http://www.activestate.com/oem|ActivePython OEM]]: Redistribution rights for ActivePython with optional support and legal indemnification.


[[http://www.activestate.com|ActiveState|title=ActiveState]] is one of the most well known and one of the longest running suppliers of Python distributions, tools, and support.