IronLanguages/ironpython2

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

Python

1,075

2,350 commits

updated Mar 13, 2026

See the code

README

IronPython 3 has been released and is now available for download at https://github.com/IronLanguages/ironpython3!

IronPython

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 http://ironpython.net/.

What?Where?
Windows/Linux/macOS BuildsAzure build status Github build status
DownloadsNuGet Release
HelpGitter chat StackExchange

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

C#:

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

IronPython:

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.

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

import clr
clr.AddReference("System.Windows.Forms")
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

Documentation can be found here: http://ironpython.net/documentation/dotnet/

Additional information

Please see http://wiki.github.com/IronLanguages/main for information on:

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

Chat/Communication

Join our Gitter-Chat under: https://gitter.im/IronLanguages/ironpython

IronLanguages/ironpython2

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

Python

1,075

2,350 commits

updated Mar 13, 2026

See the code

README

IronPython 3 has been released and is now available for download at https://github.com/IronLanguages/ironpython3!

IronPython

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 http://ironpython.net/.

What?Where?
Windows/Linux/macOS BuildsAzure build status Github build status
DownloadsNuGet Release
HelpGitter chat StackExchange

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

C#:

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

IronPython:

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.

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

import clr
clr.AddReference("System.Windows.Forms")
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

Documentation can be found here: http://ironpython.net/documentation/dotnet/

Additional information

Please see http://wiki.github.com/IronLanguages/main for information on:

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

Chat/Communication

Join our Gitter-Chat under: https://gitter.im/IronLanguages/ironpython

Project health

Overall

1.8/10

Maintained

0/10

Code review

3/10
OpenSSF Scorecard

Significant stargazers

Anthony Shaw

2,354 followers · starred Sep 2020

Ben {chmark} Adams

2,035 followers · starred Feb 2018

Anton Firszov

103 followers · starred Jul 2019

xingkong

27 followers · starred Feb 2018