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  <div class="section" id="boolean-objects">
<span id="boolobjects"></span><h1>Boolean Objects<a class="headerlink" href="#boolean-objects" title="Permalink to this headline">¶</a></h1>
<p>Booleans in Python are implemented as a subclass of integers.  There are only
two booleans, <tt class="xref py py-const docutils literal"><span class="pre">Py_False</span></tt> and <tt class="xref py py-const docutils literal"><span class="pre">Py_True</span></tt>.  As such, the normal
creation and deletion functions don&#8217;t apply to booleans.  The following macros
are available, however.</p>
<dl class="function">
<dt id="PyBool_Check">
int <tt class="descname">PyBool_Check</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em>&nbsp;*o</em><big>)</big><a class="headerlink" href="#PyBool_Check" title="Permalink to this definition">¶</a></dt>
<dd><p>Return true if <em>o</em> is of type <tt class="xref c c-data docutils literal"><span class="pre">PyBool_Type</span></tt>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.3.</span></p>
</dd></dl>

<dl class="var">
<dt id="Py_False">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">Py_False</tt><a class="headerlink" href="#Py_False" title="Permalink to this definition">¶</a></dt>
<dd><p>The Python <tt class="docutils literal"><span class="pre">False</span></tt> object.  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="var">
<dt id="Py_True">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">Py_True</tt><a class="headerlink" href="#Py_True" title="Permalink to this definition">¶</a></dt>
<dd><p>The Python <tt class="docutils literal"><span class="pre">True</span></tt> object.  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_FALSE">
<tt class="descname">Py_RETURN_FALSE</tt><a class="headerlink" href="#Py_RETURN_FALSE" title="Permalink to this definition">¶</a></dt>
<dd><p>Return <tt class="xref py py-const docutils literal"><span class="pre">Py_False</span></tt> from a function, properly incrementing its reference
count.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.4.</span></p>
</dd></dl>

<dl class="macro">
<dt id="Py_RETURN_TRUE">
<tt class="descname">Py_RETURN_TRUE</tt><a class="headerlink" href="#Py_RETURN_TRUE" title="Permalink to this definition">¶</a></dt>
<dd><p>Return <tt class="xref py py-const docutils literal"><span class="pre">Py_True</span></tt> from a function, properly incrementing its reference
count.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.4.</span></p>
</dd></dl>

<dl class="function">
<dt id="PyBool_FromLong">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyBool_FromLong</tt><big>(</big>long<em>&nbsp;v</em><big>)</big><a class="headerlink" href="#PyBool_FromLong" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new reference to <tt class="xref py py-const docutils literal"><span class="pre">Py_True</span></tt> or <tt class="xref py py-const docutils literal"><span class="pre">Py_False</span></tt> depending on the
truth value of <em>v</em>.</p>
<p class="versionadded">
<span class="versionmodified">New in version 2.3.</span></p>
</dd></dl>

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