Edit File: type.html
<!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>Type Objects — Python v2.6.6 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: '2.6.6', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python v2.6.6 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 v2.6.6 documentation" href="../index.html" /> <link rel="up" title="Concrete Objects Layer" href="concrete.html" /> <link rel="next" title="The None Object" href="none.html" /> <link rel="prev" title="Concrete Objects Layer" href="concrete.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> </head> <body> <div class="related"> <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="../modindex.html" title="Global Module Index" accesskey="M">modules</a> |</li> <li class="right" > <a href="none.html" title="The None Object" accesskey="N">next</a> |</li> <li class="right" > <a href="concrete.html" title="Concrete Objects Layer" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="../index.html">Python v2.6.6 documentation</a> »</li> <li><a href="index.html" >Python/C API Reference Manual</a> »</li> <li><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"> <div class="section" id="type-objects"> <span id="typeobjects"></span><h1>Type Objects<a class="headerlink" href="#type-objects" title="Permalink to this headline">¶</a></h1> <span class="target" id="index-149"></span><dl class="ctype"> <dt id="PyTypeObject"> <tt class="descname">PyTypeObject</tt><a class="headerlink" href="#PyTypeObject" title="Permalink to this definition">¶</a></dt> <dd>The C structure of the objects used to describe built-in types.</dd></dl> <dl class="cvar"> <dt id="PyType_Type"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyType_Type</tt><a class="headerlink" href="#PyType_Type" title="Permalink to this definition">¶</a></dt> <dd><p id="index-150">This is the type object for type objects; it is the same object as <tt class="docutils literal"><span class="pre">type</span></tt> and <tt class="docutils literal"><span class="pre">types.TypeType</span></tt> in the Python layer.</p> </dd></dl> <dl class="cfunction"> <dt id="PyType_Check"> int <tt class="descname">PyType_Check</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *o</em><big>)</big><a class="headerlink" href="#PyType_Check" title="Permalink to this definition">¶</a></dt> <dd>Return true if the object <em>o</em> is a type object, including instances of types derived from the standard type object. Return false in all other cases.</dd></dl> <dl class="cfunction"> <dt id="PyType_CheckExact"> int <tt class="descname">PyType_CheckExact</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *o</em><big>)</big><a class="headerlink" href="#PyType_CheckExact" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if the object <em>o</em> is a type object, but not a subtype of the standard type object. Return false in all other cases.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.2.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyType_ClearCache"> unsigned int <tt class="descname">PyType_ClearCache</tt><big>(</big><big>)</big><a class="headerlink" href="#PyType_ClearCache" title="Permalink to this definition">¶</a></dt> <dd><p>Clear the internal lookup cache. Return the current version tag.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.6.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyType_Modified"> void <tt class="descname">PyType_Modified</tt><big>(</big><a title="PyTypeObject" class="reference internal" href="#PyTypeObject">PyTypeObject</a><em> *type</em><big>)</big><a class="headerlink" href="#PyType_Modified" title="Permalink to this definition">¶</a></dt> <dd><p>Invalidate the internal lookup cache for the type and all of its subtypes. This function must be called after any manual modification of the attributes or base classes of the type.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.6.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyType_HasFeature"> int <tt class="descname">PyType_HasFeature</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *o</em>, int<em> feature</em><big>)</big><a class="headerlink" href="#PyType_HasFeature" title="Permalink to this definition">¶</a></dt> <dd>Return true if the type object <em>o</em> sets the feature <em>feature</em>. Type features are denoted by single bit flags.</dd></dl> <dl class="cfunction"> <dt id="PyType_IS_GC"> int <tt class="descname">PyType_IS_GC</tt><big>(</big><a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *o</em><big>)</big><a class="headerlink" href="#PyType_IS_GC" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if the type object includes support for the cycle detector; this tests the type flag <a title="Py_TPFLAGS_HAVE_GC" class="reference external" href="typeobj.html#Py_TPFLAGS_HAVE_GC"><tt class="xref docutils literal"><span class="pre">Py_TPFLAGS_HAVE_GC</span></tt></a>.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.0.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyType_IsSubtype"> int <tt class="descname">PyType_IsSubtype</tt><big>(</big><a title="PyTypeObject" class="reference internal" href="#PyTypeObject">PyTypeObject</a><em> *a</em>, <a title="PyTypeObject" class="reference internal" href="#PyTypeObject">PyTypeObject</a><em> *b</em><big>)</big><a class="headerlink" href="#PyType_IsSubtype" title="Permalink to this definition">¶</a></dt> <dd><p>Return true if <em>a</em> is a subtype of <em>b</em>.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.2.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyType_GenericAlloc"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyType_GenericAlloc</tt><big>(</big><a title="PyTypeObject" class="reference internal" href="#PyTypeObject">PyTypeObject</a><em> *type</em>, Py_ssize_t<em> nitems</em><big>)</big><a class="headerlink" href="#PyType_GenericAlloc" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p class="versionadded"> <span class="versionmodified">New in version 2.2.</span></p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.5: </span>This function used an <tt class="xref docutils literal"><span class="pre">int</span></tt> type for <em>nitems</em>. This might require changes in your code for properly supporting 64-bit systems.</p> </dd></dl> <dl class="cfunction"> <dt id="PyType_GenericNew"> <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a>* <tt class="descname">PyType_GenericNew</tt><big>(</big><a title="PyTypeObject" class="reference internal" href="#PyTypeObject">PyTypeObject</a><em> *type</em>, <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *args</em>, <a title="PyObject" class="reference external" href="structures.html#PyObject">PyObject</a><em> *kwds</em><big>)</big><a class="headerlink" href="#PyType_GenericNew" title="Permalink to this definition">¶</a></dt> <dd><em class="refcount">Return value: New reference.</em><p class="versionadded"> <span class="versionmodified">New in version 2.2.</span></p> </dd></dl> <dl class="cfunction"> <dt id="PyType_Ready"> int <tt class="descname">PyType_Ready</tt><big>(</big><a title="PyTypeObject" class="reference internal" href="#PyTypeObject">PyTypeObject</a><em> *type</em><big>)</big><a class="headerlink" href="#PyType_Ready" title="Permalink to this definition">¶</a></dt> <dd><p>Finalize a type object. This should be called on all type objects to finish their initialization. This function is responsible for adding inherited slots from a type’s base class. Return <tt class="docutils literal"><span class="pre">0</span></tt> on success, or return <tt class="docutils literal"><span class="pre">-1</span></tt> and sets an exception on error.</p> <p class="versionadded"> <span class="versionmodified">New in version 2.2.</span></p> </dd></dl> </div> </div> </div> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="concrete.html" title="previous chapter">Concrete Objects Layer</a></p> <h4>Next topic</h4> <p class="topless"><a href="none.html" title="next chapter">The None Object</a></p> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li><a href="../_sources/c-api/type.txt" rel="nofollow">Show Source</a></li> </ul> <div id="searchbox" style="display: none"> <h3>Quick search</h3> <form class="search" action="../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> <p class="searchtip" style="font-size: 90%"> Enter search terms or a module, class or function name. </p> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../modindex.html" title="Global Module Index" >modules</a> |</li> <li class="right" > <a href="none.html" title="The None Object" >next</a> |</li> <li class="right" > <a href="concrete.html" title="Concrete Objects Layer" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="../index.html">Python v2.6.6 documentation</a> »</li> <li><a href="index.html" >Python/C API Reference Manual</a> »</li> <li><a href="concrete.html" >Concrete Objects Layer</a> »</li> </ul> </div> <div class="footer"> © <a href="../copyright.html">Copyright</a> 1990-2011, Python Software Foundation. <br /> The Python Software Foundation is a non-profit corporation. <a href="http://www.python.org/psf/donations/">Please donate.</a> <br /> Last updated on Jul 20, 2011. <a href="../bugs.html">Found a bug</a>? <br /> Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 0.6.6. </div> </body> </html>
Back to File Manager