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  <div class="section" id="the-none-object">
<span id="noneobject"></span><h1>The None Object<a class="headerlink" href="#the-none-object" title="Permalink to this headline">¶</a></h1>
<p id="index-0">Note that the <a class="reference internal" href="type.html#PyTypeObject" title="PyTypeObject"><tt class="xref c c-type docutils literal"><span class="pre">PyTypeObject</span></tt></a> for <tt class="docutils literal"><span class="pre">None</span></tt> is not directly exposed in the
Python/C API.  Since <tt class="docutils literal"><span class="pre">None</span></tt> is a singleton, testing for object identity (using
<tt class="docutils literal"><span class="pre">==</span></tt> in C) is sufficient. There is no <tt class="xref c c-func docutils literal"><span class="pre">PyNone_Check()</span></tt> function for the
same reason.</p>
<dl class="var">
<dt id="Py_None">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">Py_None</tt><a class="headerlink" href="#Py_None" title="Permalink to this definition">¶</a></dt>
<dd><p>The Python <tt class="docutils literal"><span class="pre">None</span></tt> object, denoting lack of value.  This object has no methods.
It needs to be treated just like any other object with respect to reference
counts.</p>
</dd></dl>

<dl class="macro">
<dt id="Py_RETURN_NONE">
<tt class="descname">Py_RETURN_NONE</tt><a class="headerlink" href="#Py_RETURN_NONE" title="Permalink to this definition">¶</a></dt>
<dd><p>Properly handle returning <a class="reference internal" href="#Py_None" title="Py_None"><tt class="xref c c-data docutils literal"><span class="pre">Py_None</span></tt></a> from within a C function.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.4.</span></p>
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