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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="X-UA-Compatible" content="IE=Edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Method Objects — Python 2.7.18 documentation</title> <link rel="stylesheet" href="../_static/classic.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></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/language_data.js"></script> <script type="text/javascript" src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 2.7.18 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="File Objects" href="file.html" /> <link rel="prev" title="Function Objects" href="function.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="file:///usr/share/doc/python2.7/html/c-api/method.html" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head><body> <div id="outdated-warning" style="padding: .5em; text-align: center; background-color: #FFBABA; color: #6A0E0E;"> This document is for an old version of Python that is <a href="https://devguide.python.org/devcycle/#end-of-life-branches">no longer supported</a>. You should install the python3 and python3-doc packages and read the <a href="file:///usr/share/doc/python3-doc/html/c-api/method.html"> Python documentation for the Python3 version packaged in this release</a>. </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="file.html" title="File Objects" accesskey="N">next</a> |</li> <li class="right" > <a href="function.html" title="Function Objects" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.18 documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >Python/C API Reference Manual</a> »</li> <li class="nav-item nav-item-2"><a href="concrete.html" accesskey="U">Concrete Objects Layer</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="method-objects"> <span id="id1"></span><h1>Method Objects<a class="headerlink" href="#method-objects" title="Permalink to this headline">¶</a></h1> <p id="index-0">There are some useful functions that are useful for working with method objects.</p> <dl class="var"> <dt id="c.PyMethod_Type"> <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject">PyTypeObject</a> <code class="descname">PyMethod_Type</code><a class="headerlink" href="#c.PyMethod_Type" title="Permalink to this definition">¶</a></dt> <dd><p id="index-1">This instance of <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyTypeObject</span></code></a> represents the Python method type. This is exposed to Python programs as <code class="docutils literal notranslate"><span class="pre">types.MethodType</span></code>.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_Check"> int <code class="descname">PyMethod_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *o</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Check" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if <em>o</em> is a method object (has type <a class="reference internal" href="#c.PyMethod_Type" title="PyMethod_Type"><code class="xref c c-data docutils literal notranslate"><span class="pre">PyMethod_Type</span></code></a>). The parameter must not be <em>NULL</em>.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_New"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_New</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *func</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *self</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *class</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_New" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p>Return a new method object, with <em>func</em> being any callable object; this is the function that will be called when the method is called. If this method should be bound to an instance, <em>self</em> should be the instance and <em>class</em> should be the class of <em>self</em>, otherwise <em>self</em> should be <em>NULL</em> and <em>class</em> should be the class which provides the unbound method..</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_Class"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_Class</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *meth</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Class" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the class object from which the method <em>meth</em> was created; if this was created from an instance, it will be the class of the instance.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_GET_CLASS"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_GET_CLASS</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *meth</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_GET_CLASS" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: Borrowed reference.</em><p>Macro version of <a class="reference internal" href="#c.PyMethod_Class" title="PyMethod_Class"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyMethod_Class()</span></code></a> which avoids error checking.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_Function"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_Function</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *meth</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Function" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the function object associated with the method <em>meth</em>.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_GET_FUNCTION"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_GET_FUNCTION</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *meth</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_GET_FUNCTION" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: Borrowed reference.</em><p>Macro version of <a class="reference internal" href="#c.PyMethod_Function" title="PyMethod_Function"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyMethod_Function()</span></code></a> which avoids error checking.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_Self"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_Self</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *meth</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Self" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the instance associated with the method <em>meth</em> if it is bound, otherwise return <em>NULL</em>.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_GET_SELF"> <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyMethod_GET_SELF</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *meth</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_GET_SELF" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: Borrowed reference.</em><p>Macro version of <a class="reference internal" href="#c.PyMethod_Self" title="PyMethod_Self"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyMethod_Self()</span></code></a> which avoids error checking.</p> </dd></dl> <dl class="function"> <dt id="c.PyMethod_ClearFreeList"> int <code class="descname">PyMethod_ClearFreeList</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_ClearFreeList" title="Permalink to this definition">¶</a></dt> <dd><p>Clear the free list. 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