Implementation of the Python programming language for .NET Framework; built on top of the Dynamic Language Runtime (DLR).
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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.

IronPython can be obtained at

Comparison of IronPython vs. C# for 'Hello World'


using System;
class Hello
    static void Main() 
        Console.WriteLine("Hello World");


print "Hello World"

IronPython is a Dynamic Language that runs on the .NET DLR (Dynamic Language Runtime) in contrast with VB.NET and C# which are static languages.

Iron Python can also import DLL files compiled in other languages and use functions defined therein. For example:

import clr
from System.Windows.Forms import *

Code of Conduct

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community. For more information see the .NET Foundation Code of Conduct.


Documentation can be found here:

Additional information

Please see for information on:

  • Setting up a development environment with easy access to utility scripts
  • Building
  • Running test


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