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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>36.7. autoGIL — Global Interpreter Lock handling in event loops — Python 2.7.5 documentation</title> <link rel="stylesheet" href="../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '2.7.5', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <script type="text/javascript" src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 2.7.5 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="top" title="Python 2.7.5 documentation" href="../index.html" /> <link rel="up" title="36. 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FrameWork — Interactive application framework" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="http://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.5 documentation</a> » </li> <li><a href="index.html" >The Python Standard Library</a> »</li> <li><a href="mac.html" accesskey="U">36. Mac OS X specific services</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="module-autoGIL"> <span id="autogil-global-interpreter-lock-handling-in-event-loops"></span><h1>36.7. <a class="reference internal" href="#module-autoGIL" title="autoGIL: Global Interpreter Lock handling in event loops. (deprecated) (Mac)"><tt class="xref py py-mod docutils literal"><span class="pre">autoGIL</span></tt></a> — Global Interpreter Lock handling in event loops<a class="headerlink" href="#module-autoGIL" title="Permalink to this headline">¶</a></h1> <p>The <a class="reference internal" href="#module-autoGIL" title="autoGIL: Global Interpreter Lock handling in event loops. (deprecated) (Mac)"><tt class="xref py py-mod docutils literal"><span class="pre">autoGIL</span></tt></a> module provides a function <a class="reference internal" href="#autoGIL.installAutoGIL" title="autoGIL.installAutoGIL"><tt class="xref py py-func docutils literal"><span class="pre">installAutoGIL()</span></tt></a> that automatically locks and unlocks Python’s <a class="reference internal" href="../glossary.html#term-global-interpreter-lock"><em class="xref std std-term">Global Interpreter Lock</em></a> when running an event loop.</p> <div class="admonition note"> <p class="first admonition-title">Note</p> <p class="last">This module has been removed in Python 3.x.</p> </div> <dl class="exception"> <dt id="autoGIL.AutoGILError"> <em class="property">exception </em><tt class="descclassname">autoGIL.</tt><tt class="descname">AutoGILError</tt><a class="headerlink" href="#autoGIL.AutoGILError" title="Permalink to this definition">¶</a></dt> <dd><p>Raised if the observer callback cannot be installed, for example because the current thread does not have a run loop.</p> </dd></dl> <dl class="function"> <dt id="autoGIL.installAutoGIL"> <tt class="descclassname">autoGIL.</tt><tt class="descname">installAutoGIL</tt><big>(</big><big>)</big><a class="headerlink" href="#autoGIL.installAutoGIL" title="Permalink to this definition">¶</a></dt> <dd><p>Install an observer callback in the event loop (CFRunLoop) for the current thread, that will lock and unlock the Global Interpreter Lock (GIL) at appropriate times, allowing other Python threads to run while the event loop is idle.</p> <p>Availability: OSX 10.1 or later.</p> </dd></dl> </div> </div> </div> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="framework.html" title="previous chapter">36.6. <tt class="docutils literal"><span class="pre">FrameWork</span></tt> — Interactive application framework</a></p> <h4>Next topic</h4> <p class="topless"><a href="carbon.html" title="next chapter">36.8. 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