IronPython.net /

<!DOCTYPE html> <html> <head> <title>IronPython.net / </title> <link rel="stylesheet" href="/css/rst.css" type="text/css" media="screen" charset="utf-8" /> <link rel="stylesheet" href="/css/master.css" type="text/css" media="screen" charset="utf-8" /> <link rel="stylesheet" href="/css/lang.css" type="text/css" media="screen" charset="utf-8" /> <link rel="stylesheet" href="/css/sticky-footer.css" type="text/css" media="screen" charset="utf-8" /> <link rel="shortcut icon" type="image/x-icon" href="https://ironpython.net/favicon.ico"> </head> <body id="ironpython" class="home columns page"> <div id="wrap"> <div id="main" class="clearfix"> <div id="nav"> <div> <a href='/'>Overview</a> <a href='/download/' >Download</a> <a href='/tools/' >Tools</a> <a href='/documentation/' >Documentation</a> <a href='/support/' >Support</a> <a href='/blog/' >Blog</a> </div> </div> <div id="header"> <h1><a href="..">IronPython</a></h1> <h2> the <a target="_blank" class="lang" href="https://python.org">Python</a> programming language for <a target="_blank" class="dotnet" href="https://dotnet.microsoft.com/">.NET</a> </h2> </div> <div id="what-is"> <p> IronPython is an <a target='_blank' href="http://www.opensource.org/licenses/apache2.0.php">open-source</a> implementation of the Python programming language which is tightly integrated with .NET. IronPython can use .NET and Python libraries, and other .NET languages can use Python code just as easily. </p> </div> <div id="get"> <ul> <li id='download'> <h3><a href='https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.12' target='_blank'><br/>2.7</a></h3> <p> <a href='download/'>2.7.12 released on 2022-01-21<br /> <a href='https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.12' target='_blank'>release notes</a> | <a href="https://github.com/IronLanguages/ironpython2/archive/ipy-2.7.12.zip" target='_blank'>source</a> </p> </li> <li id='download'> <h3><a href='https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.2' target='_blank'><br/>3.4</a></h3> <p> <a href='download/'>3.4.2 released on 2024-12-19<br /> <a href='https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.2' target='_blank'>release notes</a> | <a href="https://github.com/IronLanguages/ironpython3/archive/v3.4.2.zip" target='_blank'>source</a> </p> </li>   <li id="tutorial"> <pre id="code-snippet"><code><img src="../images/ironpython-interactive.png" height="279" alt="IronPython Interactive in Visual Studio" /></code></pre> <p> Experience a more interactive .NET and Python development experience with <a href="tools/">Python Tools for Visual Studio</a>. </p> </li> <li class='clear'> </li> </ul> </div> <script type="text/javascript" src="https://ajax.microsoft.com/ajax/jQuery/jquery-1.3.2.js"></script> <div id="body"> <div class="section" id="why-iron-language"> <h1>Why IronPython?</h1> <p>IronPython is an excellent addition to .NET, providing Python developers with the power of the .NET. Existing .NET developers can also use IronPython as a fast and expressive scripting language for embedding, testing, or writing a new application from scratch.</p> <p>The CLR is a great platform for creating programming languages, and the DLR makes it all the better for dynamic languages. Also, the .NET (base class library, presentation foundation, etc.) gives developers an amazing amount of functionality and power.</p> </div> <div class="section" id="announcements"> <h1>Announcements</h1> <div class="strip admonition"> <p class="first admonition-title">December 19, 2024</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.2">IronPython 3.4.2</a> is now available!</p> <p>See <a href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.2">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">July 12, 2023</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.1">IronPython 3.4.1</a> is now available!</p> <p>See <a href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.1">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">December 12, 2022</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.0">IronPython 3.4.0</a> is now available!</p> <p>See <a href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.0">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">April 30, 2022</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.0-beta1">IronPython 3.4.0-beta1</a> is now available!</p> <p>See <a href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.0-beta1">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">January 21, 2022</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.12">IronPython 2.7.12</a> is now available!</p> <p>See <a href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.12">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">April 19, 2021</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.0-alpha1">IronPython 3.4.0-alpha1</a> is now available!</p> <p>See <a href="https://github.com/IronLanguages/ironpython3/releases/tag/v3.4.0-alpha1">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">November 17, 2020</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.11">IronPython 2.7.11</a> is now available!</p> <p>This release resolves issues with .NET 5.</p> <p>See <a href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.11">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">April 27, 2020</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.10">IronPython 2.7.10</a> is now available!</p> <p>This release provides .NET Core and .NET Standard support.</p> <p>See <a href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.10">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">October 9, 2018</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.9">IronPython 2.7.9</a> is now available!</p> <p>This release includes many fixes.</p> <p>See <a href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.9">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">February 16, 2018</p> <p><a class="reference external" href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.8">IronPython 2.7.8</a> is now available!</p> <p>This release includes many fixes.</p> <p>See <a href="https://github.com/IronLanguages/ironpython2/releases/tag/ipy-2.7.8">the release announcement</a> for details.</p> </div> <div class="strip admonition"> <p class="first admonition-title">December 7, 2016</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.7">IronPython 2.7.7</a> is now available!</p> <p>This release includes many fixes. <p>See <a href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.7">the release announcement</a> for details. </div> <div class="strip admonition"> <p class="first admonition-title">August 20, 2016</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.6.3">IronPython 2.7.6</a> is now available!</p> <p>This release includes many fixes. <p>See <a href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.6.3">the release announcement</a> for details. </div> <div class="strip admonition"> <p class="first admonition-title">December 6, 2014</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.5">IronPython 2.7.5</a> is now available!</p> <p>This release includes <tt>ensurepip</tt> and many other fixes. <p>See <a href="https://ironpython.net/blog/2014/12/06/ironpython-275-released.html"> the release announcement</a> for details. </div> <div class="strip admonition"> <p class="first admonition-title">November 21, 2014</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.5-rc1">IronPython 2.7.5 Release Candidate 1</a> is now available!</p> <p>See <a href="https://ironpython.net/blog/2014/11/21/ironpython-275-release-candidate-1.html">the release announcement</a> for details. </div> <div class="strip admonition"> <p class="first admonition-title">May 25, 2014</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.5-b2">IronPython 2.7.5 Beta 2</a> is now available!</p> <p>See <a href="https://ironpython.net/blog/2014/05/25/ironpython-275-beta-2-released.html">the release announcement</a> for details. </div> <div class="strip admonition"> <p class="first admonition-title">September 7, 2013</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.4">IronPython 2.7.4</a> is now available!</p> <p>This includes numerous fixes, including several improvements to the <tt>ast</tt> module and other compatibility fixes. <p>See <a href="https://ironpython.net/blog/2013/09/08/ironpython-274-released.html">the release announcement</a> for details. </div> <div class="strip admonition"> <p class="first admonition-title">August 17, 2013</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.4-rc1">IronPython 2.7.4 Release Candidate</a> is now available!</p> </div> <div class="strip admonition"> <p class="first admonition-title">July 6, 2012</p> <p><a class="reference external" href="https://github.com/IronLanguages/main/releases/tag/ipy-2.7.3">IronPython 2.7.3</a> is now available!</p> <p>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.</p> <p class="last">See <a class="reference external" href="https://ironpython.net/blog/2012/07/07/whats-new-in-ironpython-273.html">what's new in 2.7.3</a> for more information.</p> </div> <div class="download col container"> <a class="reference external" href="announcements/">All IronPython Announcements</a></div> </div> </div> </div> </div> </div> <div id="footer"> <ul> <li>© <a 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