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<title>7.5.6 Descriptor Objects
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<H2><A NAME=
"SECTION009560000000000000000"></A><A NAME=
"descriptor-objects"></A>
``Descriptors'' are objects that describe some attribute of an object.
They are found in the dictionary of type objects.
<dl><dt>PyTypeObject
<b><tt id='l2h-
703' xml:id='l2h-
703'
class=
"cdata">PyProperty_Type
</tt></b></dt>
The type object for the built-in descriptor types.
<span class=
"versionnote">New in version
2.2.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>PyObject*
<b><tt id='l2h-
704' xml:id='l2h-
704'
class=
"cfunction">PyDescr_NewGetSet
</tt></b>(
</nobr></td><td>PyTypeObject *
<var>type
</var>,
PyGetSetDef *
<var>getset
</var>)
</td></tr></table></dt>
<div class=
"refcount-info">
<span class=
"label">Return value:
</span>
<span class=
"value">New reference.
</span>
<span class=
"versionnote">New in version
2.2.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>PyObject*
<b><tt id='l2h-
705' xml:id='l2h-
705'
class=
"cfunction">PyDescr_NewMember
</tt></b>(
</nobr></td><td>PyTypeObject *
<var>type
</var>,
PyMemberDef *
<var>meth
</var>)
</td></tr></table></dt>
<div class=
"refcount-info">
<span class=
"label">Return value:
</span>
<span class=
"value">New reference.
</span>
<span class=
"versionnote">New in version
2.2.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>PyObject*
<b><tt id='l2h-
706' xml:id='l2h-
706'
class=
"cfunction">PyDescr_NewMethod
</tt></b>(
</nobr></td><td>PyTypeObject *
<var>type
</var>,
PyMethodDef *
<var>meth
</var>)
</td></tr></table></dt>
<div class=
"refcount-info">
<span class=
"label">Return value:
</span>
<span class=
"value">New reference.
</span>
<span class=
"versionnote">New in version
2.2.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>PyObject*
<b><tt id='l2h-
707' xml:id='l2h-
707'
class=
"cfunction">PyDescr_NewWrapper
</tt></b>(
</nobr></td><td>PyTypeObject *
<var>type
</var>,
struct wrapperbase *
<var>wrapper
</var>,
void *
<var>wrapped
</var>)
</td></tr></table></dt>
<div class=
"refcount-info">
<span class=
"label">Return value:
</span>
<span class=
"value">New reference.
</span>
<span class=
"versionnote">New in version
2.2.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>PyObject*
<b><tt id='l2h-
708' xml:id='l2h-
708'
class=
"cfunction">PyDescr_NewClassMethod
</tt></b>(
</nobr></td><td>PyTypeObject *
<var>type
</var>,
PyMethodDef *
<var>method
</var>)
</td></tr></table></dt>
<span class=
"versionnote">New in version
2.3.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>int
<b><tt id='l2h-
709' xml:id='l2h-
709'
class=
"cfunction">PyDescr_IsData
</tt></b>(
</nobr></td><td>PyObject *
<var>descr
</var>)
</td></tr></table></dt>
Return true if the descriptor objects
<var>descr
</var> describes a data
attribute, or false if it describes a method.
<var>descr
</var> must be a
descriptor object; there is no error checking.
<span class=
"versionnote">New in version
2.2.
</span>
<dl><dt><table cellpadding=
"0" cellspacing=
"0"><tr valign=
"baseline"><td><nobr>PyObject*
<b><tt id='l2h-
710' xml:id='l2h-
710'
class=
"cfunction">PyWrapper_New
</tt></b>(
</nobr></td><td>PyObject *, PyObject *)
</td></tr></table></dt>
<div class=
"refcount-info">
<span class=
"label">Return value:
</span>
<span class=
"value">New reference.
</span>
<span class=
"versionnote">New in version
2.2.
</span>
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<span class=
"release-info">Release
2.4.2, documentation updated on
28 September
2005.
</span>
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