Stable versions

The latest stable version of IronPython is IronPython 2.7.3, which is compatible with Python 2.7.

Download IronPython 2.7.3

If you need compatibility with Python 2.5 or Python 2.6, take a look at IronPython 2.0.3 and IronPython 2.6.2, respectively. However they are no longer being maintained.

Latest version

The latest version of IronPython is IronPython 2.7.3.

Download IronPython 2.7.3

Prerequisites

IronPython is a cross-platform and cross-browser programming language, so prerequisites will vary based on usage.

Here are the recommended runtimes are for each platform:

Windows desktop & server apps

On Windows for desktop and server usage, the .NET framework is the recommended runtime.

Latest .NET version (4.0)

Note

IronPython also runs on .NET: 3.5 SP1, but must be compiled from
source.

Windows & Mac OS browser apps

On Windows & Mac OS for browser usage, Silverlight is the recommended runtime.

Latest Silverlight version (5.0)

Silverlight enables you to use Python to script HTML pages just as you would with JavaScript, and also enables advanced vector graphics for rich user-interfaces and video.


Learn more about Python in the browser

Mac OS & Linux desktop & server apps

IronPython runs on Mono, a cross platform, open source .NET framework, enables IronPython to be used on Linux, Mac OS, and BSD systems.

Mono

Linux browser apps

IronPython also runs on Moonlight, a open source implementation of Microsoft Silverlight for Unix systems.

Moonlight

Note

Moonlight 2 targets the Silverlight 2 API, so if you want to
run the same application on all platforms make sure to only use
Silverlight 2 APIs, or provide a fallback implementation for
Moonlight.