sam-t2/devtools/v8plus/html/python/api/typeObjects.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<link rel="STYLESHEET" href="api.css" type='text/css' />
<link rel="SHORTCUT ICON" href="../icons/pyfav.png" type="image/png" />
<link rel='start' href='../index.html' title='Python Documentation Index' />
<link rel="first" href="api.html" title='Python/C API Reference Manual' />
<link rel='contents' href='contents.html' title="Contents" />
<link rel='index' href='genindex.html' title='Index' />
<link rel='last' href='about.html' title='About this document...' />
<link rel='help' href='about.html' title='About this document...' />
<link rel="next" href="noneObject.html" />
<link rel="prev" href="fundamental.html" />
<link rel="parent" href="fundamental.html" />
<link rel="next" href="noneObject.html" />
<meta name='aesop' content='information' />
<title>7.1.1 Type Objects </title>
</head>
<body>
<DIV CLASS="navigation">
<div id='top-navigation-panel' xml:id='top-navigation-panel'>
<table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td class='online-navigation'><a rel="prev" title="7.1 Fundamental Objects"
  href="fundamental.html"><img src='../icons/previous.png'
  border='0' height='32'  alt='Previous Page' width='32' /></A></td>
<td class='online-navigation'><a rel="parent" title="7.1 Fundamental Objects"
  href="fundamental.html"><img src='../icons/up.png'
  border='0' height='32'  alt='Up One Level' width='32' /></A></td>
<td class='online-navigation'><a rel="next" title="7.1.2 The None Object"
  href="noneObject.html"><img src='../icons/next.png'
  border='0' height='32'  alt='Next Page' width='32' /></A></td>
<td align="center" width="100%">Python/C API Reference Manual</td>
<td class='online-navigation'><a rel="contents" title="Table of Contents"
  href="contents.html"><img src='../icons/contents.png'
  border='0' height='32'  alt='Contents' width='32' /></A></td>
<td class='online-navigation'><img src='../icons/blank.png'
  border='0' height='32'  alt='' width='32' /></td>
<td class='online-navigation'><a rel="index" title="Index"
  href="genindex.html"><img src='../icons/index.png'
  border='0' height='32'  alt='Index' width='32' /></A></td>
</tr></table>
<div class='online-navigation'>
<b class="navlabel">Previous:</b>
<a class="sectref" rel="prev" href="fundamental.html">7.1 Fundamental Objects</A>
<b class="navlabel">Up:</b>
<a class="sectref" rel="parent" href="fundamental.html">7.1 Fundamental Objects</A>
<b class="navlabel">Next:</b>
<a class="sectref" rel="next" href="noneObject.html">7.1.2 The None Object</A>
</div>
<hr /></div>
</DIV>
<!--End of Navigation Panel-->

<H2><A NAME="SECTION009110000000000000000"></A><A NAME="typeObjects"></A>
<BR>
7.1.1 Type Objects
</H2>

<P>
<a id='l2h-352' xml:id='l2h-352'></a><dl><dt><b><tt class="ctype"><a id='l2h-353' xml:id='l2h-353'>PyTypeObject</a></tt></b></dt>
<dd>
  The C structure of the objects used to describe built-in types.
</dl>

<P>
<dl><dt>PyObject* <b><tt id='l2h-354' xml:id='l2h-354' class="cdata">PyType_Type</tt></b></dt>
<dd>
  This is the type object for type objects; it is the same object as
  <code>types.TypeType</code> in the Python layer.
  <a id='l2h-356' xml:id='l2h-356'></a></dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-357' xml:id='l2h-357' class="cfunction">PyType_Check</tt></b>(</nobr></td><td>PyObject *<var>o</var>)</td></tr></table></dt>
<dd>
  Return true if the object <var>o</var> is a type object, including
  instances of types derived from the standard type object.  Return
  false in all other cases.
</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-358' xml:id='l2h-358' class="cfunction">PyType_CheckExact</tt></b>(</nobr></td><td>PyObject *<var>o</var>)</td></tr></table></dt>
<dd>
  Return true if the object <var>o</var> is a type object, but not a
  subtype of the standard type object.  Return false in all other
  cases.

<span class="versionnote">New in version 2.2.</span>

</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-359' xml:id='l2h-359' class="cfunction">PyType_HasFeature</tt></b>(</nobr></td><td>PyObject *<var>o</var>, int <var>feature</var>)</td></tr></table></dt>
<dd>
  Return true if the type object <var>o</var> sets the feature
  <var>feature</var>.  Type features are denoted by single bit flags.
</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-360' xml:id='l2h-360' class="cfunction">PyType_IS_GC</tt></b>(</nobr></td><td>PyObject *<var>o</var>)</td></tr></table></dt>
<dd>
  Return true if the type object includes support for the cycle
  detector; this tests the type flag <tt class="constant">Py_TPFLAGS_HAVE_GC</tt>.

<span class="versionnote">New in version 2.0.</span>

</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-361' xml:id='l2h-361' class="cfunction">PyType_IsSubtype</tt></b>(</nobr></td><td>PyTypeObject *<var>a</var>, PyTypeObject *<var>b</var>)</td></tr></table></dt>
<dd>
  Return true if <var>a</var> is a subtype of <var>b</var>.

<span class="versionnote">New in version 2.2.</span>

</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>PyObject*&nbsp;<b><tt id='l2h-362' xml:id='l2h-362' class="cfunction">PyType_GenericAlloc</tt></b>(</nobr></td><td>PyTypeObject *<var>type</var>,
                                                  int <var>nitems</var>)</td></tr></table></dt>
<dd>
<div class="refcount-info">
  <span class="label">Return value:</span>
  <span class="value">New reference.</span>
</div>

<span class="versionnote">New in version 2.2.</span>

</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>PyObject*&nbsp;<b><tt id='l2h-363' xml:id='l2h-363' class="cfunction">PyType_GenericNew</tt></b>(</nobr></td><td>PyTypeObject *<var>type</var>,
                                            PyObject *<var>args</var>, PyObject *<var>kwds</var>)</td></tr></table></dt>
<dd>
<div class="refcount-info">
  <span class="label">Return value:</span>
  <span class="value">New reference.</span>
</div>

<span class="versionnote">New in version 2.2.</span>

</dd></dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"><td><nobr>int&nbsp;<b><tt id='l2h-364' xml:id='l2h-364' class="cfunction">PyType_Ready</tt></b>(</nobr></td><td>PyTypeObject *<var>type</var>)</td></tr></table></dt>
<dd>
  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 <code>0</code>
  on success, or return <code>-1</code> and sets an exception on error.

<span class="versionnote">New in version 2.2.</span>

</dd></dl>

<P>

<DIV CLASS="navigation">
<div class='online-navigation'>
<p></p><hr />
<table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td class='online-navigation'><a rel="prev" title="7.1 Fundamental Objects"
  href="fundamental.html"><img src='../icons/previous.png'
  border='0' height='32'  alt='Previous Page' width='32' /></A></td>
<td class='online-navigation'><a rel="parent" title="7.1 Fundamental Objects"
  href="fundamental.html"><img src='../icons/up.png'
  border='0' height='32'  alt='Up One Level' width='32' /></A></td>
<td class='online-navigation'><a rel="next" title="7.1.2 The None Object"
  href="noneObject.html"><img src='../icons/next.png'
  border='0' height='32'  alt='Next Page' width='32' /></A></td>
<td align="center" width="100%">Python/C API Reference Manual</td>
<td class='online-navigation'><a rel="contents" title="Table of Contents"
  href="contents.html"><img src='../icons/contents.png'
  border='0' height='32'  alt='Contents' width='32' /></A></td>
<td class='online-navigation'><img src='../icons/blank.png'
  border='0' height='32'  alt='' width='32' /></td>
<td class='online-navigation'><a rel="index" title="Index"
  href="genindex.html"><img src='../icons/index.png'
  border='0' height='32'  alt='Index' width='32' /></A></td>
</tr></table>
<div class='online-navigation'>
<b class="navlabel">Previous:</b>
<a class="sectref" rel="prev" href="fundamental.html">7.1 Fundamental Objects</A>
<b class="navlabel">Up:</b>
<a class="sectref" rel="parent" href="fundamental.html">7.1 Fundamental Objects</A>
<b class="navlabel">Next:</b>
<a class="sectref" rel="next" href="noneObject.html">7.1.2 The None Object</A>
</div>
</div>
<hr />
<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
</DIV>
<!--End of Navigation Panel-->
<ADDRESS>
See <i><a href="about.html">About this document...</a></i> for information on suggesting changes.
</ADDRESS>
</BODY>
</HTML>