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  <section id="instance-method-objects">
<span id="instancemethod-objects"></span><h1>Instance Method Objects<a class="headerlink" href="#instance-method-objects" title="Permalink to this headline">¶</a></h1>
<p id="index-0">An instance method is a wrapper for a <a class="reference internal" href="structures.html#c.PyCFunction" title="PyCFunction"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyCFunction</span></code></a> and the new way
to bind a <a class="reference internal" href="structures.html#c.PyCFunction" title="PyCFunction"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyCFunction</span></code></a> to a class object. It replaces the former call
<code class="docutils literal notranslate"><span class="pre">PyMethod_New(func,</span> <span class="pre">NULL,</span> <span class="pre">class)</span></code>.</p>
<dl class="c var">
<dt class="sig sig-object c" id="c.PyInstanceMethod_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><span class="n"><span class="pre">PyTypeObject</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyInstanceMethod_Type</span></span></span><a class="headerlink" href="#c.PyInstanceMethod_Type" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>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 instance
method type. It is not exposed to Python programs.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyInstanceMethod_Check">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyInstanceMethod_Check</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">o</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyInstanceMethod_Check" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>Return true if <em>o</em> is an instance method object (has type
<a class="reference internal" href="#c.PyInstanceMethod_Type" title="PyInstanceMethod_Type"><code class="xref c c-data docutils literal notranslate"><span class="pre">PyInstanceMethod_Type</span></code></a>).  The parameter must not be <code class="docutils literal notranslate"><span class="pre">NULL</span></code>.
This function always succeeds.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyInstanceMethod_New">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyInstanceMethod_New</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">func</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyInstanceMethod_New" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new instance method object, with <em>func</em> being any callable object.
<em>func</em> is the function that will be called when the instance method is
called.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyInstanceMethod_Function">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyInstanceMethod_Function</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">im</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyInstanceMethod_Function" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the function object associated with the instance method <em>im</em>.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyInstanceMethod_GET_FUNCTION">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyInstanceMethod_GET_FUNCTION</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">im</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyInstanceMethod_GET_FUNCTION" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>Macro version of <a class="reference internal" href="#c.PyInstanceMethod_Function" title="PyInstanceMethod_Function"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyInstanceMethod_Function()</span></code></a> which avoids error checking.</p>
</dd></dl>

</section>
<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-1">Methods are bound function objects. Methods are always bound to an instance of
a user-defined class. Unbound methods (methods bound to a class object) are
no longer available.</p>
<dl class="c var">
<dt class="sig sig-object c" id="c.PyMethod_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><span class="n"><span class="pre">PyTypeObject</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_Type</span></span></span><a class="headerlink" href="#c.PyMethod_Type" title="Permalink to this definition">¶</a><br /></dt>
<dd><p id="index-2">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="c function">
<dt class="sig sig-object c" id="c.PyMethod_Check">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_Check</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">o</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Check" title="Permalink to this definition">¶</a><br /></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 <code class="docutils literal notranslate"><span class="pre">NULL</span></code>.  This function always succeeds.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyMethod_New">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_New</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">func</span></span>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">self</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_New" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new method object, with <em>func</em> being any callable object and <em>self</em>
the instance the method should be bound. <em>func</em> is the function that will
be called when the method is called. <em>self</em> must not be <code class="docutils literal notranslate"><span class="pre">NULL</span></code>.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyMethod_Function">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_Function</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">meth</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Function" title="Permalink to this definition">¶</a><br /></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="c function">
<dt class="sig sig-object c" id="c.PyMethod_GET_FUNCTION">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_GET_FUNCTION</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">meth</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_GET_FUNCTION" title="Permalink to this definition">¶</a><br /></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="c function">
<dt class="sig sig-object c" id="c.PyMethod_Self">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_Self</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">meth</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_Self" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: Borrowed reference.</em><p>Return the instance associated with the method <em>meth</em>.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyMethod_GET_SELF">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyMethod_GET_SELF</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">meth</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyMethod_GET_SELF" title="Permalink to this definition">¶</a><br /></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>

</section>


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