IronPython is an open-source implementation of the Python programming language which is tightly integrated with the .NET Framework. IronPython can use the .NET Framework and Python libraries, and other .NET languages can use Python code just as easily.

Why IronPython?

IronPython is an excellent addition to the .NET Framework, providing Python developers with the power of the .NET framework. Existing .NET developers can also use IronPython as a fast and expressive scripting language for embedding, testing, or writing a new application from scratch.

The CLR is a great platform for creating programming languages, and the DLR makes it all the better for dynamic languages. Also, the .NET framework (base class library, presentation foundation, Silverlight, etc.) gives developers an amazing amount of functionality and power.

Announcements

December 6, 2014

IronPython 2.7.5 is now available!

This release includes ensurepip and many other fixes.

See the release announcement for details.

November 21, 2014

IronPython 2.7.5 Release Candidate 1 is now available!

See the release announcement for details.

May 25, 2014

IronPython 2.7.5 Beta 2 is now available!

See the release announcement for details.

September 7, 2013

IronPython 2.7.4 is now available!

This includes numerous fixes, including several improvements to the ast module and other compatibility fixes.

See the release announcement for details.

August 17, 2013

IronPython 2.7.4 Release Candidate is now available!

July 6, 2012

IronPython 2.7.3 is now available!

This release includes support for the bz2, winsound, and _bisect modules, major improvements to the _ast module, improvements in Android support, improvements to pyc.py, and a new console that supports history and tab completion on all platforms.

See what's new in 2.7.3 for more information.