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Title: Common Object Structures — Python 3.14.2 documentation

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Description: There are a large number of structures which are used in the definition of object types for Python. This section describes these structures and how they are used. Base object types and macros: All ...

Open Graph Description: There are a large number of structures which are used in the definition of object types for Python. This section describes these structures and how they are used. Base object types and macros: All ...

Opengraph URL: https://docs.python.org/3/c-api/structures.html

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og:image:alt	There are a large number of structures which are used in the definition of object types for Python. This section describes these structures and how they are used. Base object types and macros: All ...
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Links:

	https://www.python.org/
Table of Contents	https://docs.python.org/3/contents.html
Common Object Structures	https://docs.python.org/3/c-api/structures.html
Base object types and macros	https://docs.python.org/3/c-api/structures.html#base-object-types-and-macros
Implementing functions and methods	https://docs.python.org/3/c-api/structures.html#implementing-functions-and-methods
Accessing attributes of extension types	https://docs.python.org/3/c-api/structures.html#accessing-attributes-of-extension-types
Member flags	https://docs.python.org/3/c-api/structures.html#member-flags
Member types	https://docs.python.org/3/c-api/structures.html#member-types
Defining Getters and Setters	https://docs.python.org/3/c-api/structures.html#defining-getters-and-setters
Object Life Cycle	https://docs.python.org/3/c-api/lifecycle.html
Type Object Structures	https://docs.python.org/3/c-api/typeobj.html
Report a bug	https://docs.python.org/3/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/c-api/structures.rst?plain=1
index	https://docs.python.org/3/genindex.html
modules	https://docs.python.org/3/py-modindex.html
next	https://docs.python.org/3/c-api/typeobj.html
previous	https://docs.python.org/3/c-api/lifecycle.html
Python	https://www.python.org/
3.14.2 Documentation	https://docs.python.org/3/index.html
Python/C API Reference Manual	https://docs.python.org/3/c-api/index.html
Object Implementation Support	https://docs.python.org/3/c-api/objimpl.html
Common Object Structures	https://docs.python.org/3/c-api/structures.html
¶	https://docs.python.org/3/c-api/structures.html#common-object-structures
¶	https://docs.python.org/3/c-api/structures.html#base-object-types-and-macros
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyVarObject	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
reference counting	https://docs.python.org/3/c-api/refcounting.html#countingrefs
¶	https://docs.python.org/3/c-api/structures.html#c.PyObject
Limited API	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
Py_REFCNT	https://docs.python.org/3/c-api/refcounting.html#c.Py_REFCNT
Py_TYPE	https://docs.python.org/3/c-api/structures.html#c.Py_TYPE
Py_ssize_t	https://docs.python.org/3/c-api/intro.html#c.Py_ssize_t
¶	https://docs.python.org/3/c-api/structures.html#c.PyObject.ob_refcnt
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
Py_REFCNT	https://docs.python.org/3/c-api/refcounting.html#c.Py_REFCNT
Py_INCREF()	https://docs.python.org/3/c-api/refcounting.html#c.Py_INCREF
Py_DecRef()	https://docs.python.org/3/c-api/refcounting.html#c.Py_DecRef
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyObject.ob_type
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
Py_TYPE	https://docs.python.org/3/c-api/structures.html#c.Py_TYPE
Py_SET_TYPE()	https://docs.python.org/3/c-api/structures.html#c.Py_SET_TYPE
¶	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
Limited API	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
ob_size	https://docs.python.org/3/c-api/structures.html#c.PyVarObject.ob_size
Py_SIZE	https://docs.python.org/3/c-api/structures.html#c.Py_SIZE
Py_REFCNT	https://docs.python.org/3/c-api/refcounting.html#c.Py_REFCNT
Py_TYPE	https://docs.python.org/3/c-api/structures.html#c.Py_TYPE
Py_ssize_t	https://docs.python.org/3/c-api/intro.html#c.Py_ssize_t
¶	https://docs.python.org/3/c-api/structures.html#c.PyVarObject.ob_size
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
Py_SIZE	https://docs.python.org/3/c-api/structures.html#c.Py_SIZE
PyObject_NewVar()	https://docs.python.org/3/c-api/allocation.html#c.PyObject_NewVar
Py_SET_SIZE	https://docs.python.org/3/c-api/structures.html#c.Py_SET_SIZE
len()	https://docs.python.org/3/library/functions.html#len
PyObject_Length()	https://docs.python.org/3/c-api/object.html#c.PyObject_Length
¶	https://docs.python.org/3/c-api/structures.html#c.PyObject_HEAD
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyObject_VAR_HEAD
PyVarObject	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyBaseObject_Type
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
object	https://docs.python.org/3/library/functions.html#object
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_Is
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_IsNone
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_IsTrue
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_IsFalse
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_TYPE
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
borrowed	https://docs.python.org/3/glossary.html#term-borrowed-reference
Py_DECREF()	https://docs.python.org/3/c-api/refcounting.html#c.Py_DECREF
Py_TYPE()	https://docs.python.org/3/c-api/structures.html#c.Py_TYPE
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_IS_TYPE
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_SET_TYPE
__class__	https://docs.python.org/3/reference/datamodel.html#object.__class__
PyObject_SetAttrString()	https://docs.python.org/3/c-api/object.html#c.PyObject_SetAttrString
heap type	https://docs.python.org/3/c-api/typeobj.html#heap-types
Py_ssize_t	https://docs.python.org/3/c-api/intro.html#c.Py_ssize_t
PyVarObject	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
¶	https://docs.python.org/3/c-api/structures.html#c.Py_SIZE
ob_size	https://docs.python.org/3/c-api/structures.html#c.PyVarObject.ob_size
Py_SIZE()	https://docs.python.org/3/c-api/structures.html#c.Py_SIZE
PyVarObject	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
PyVarObject	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
Py_ssize_t	https://docs.python.org/3/c-api/intro.html#c.Py_ssize_t
¶	https://docs.python.org/3/c-api/structures.html#c.Py_SET_SIZE
ob_size	https://docs.python.org/3/c-api/structures.html#c.PyVarObject.ob_size
¶	https://docs.python.org/3/c-api/structures.html#c.PyObject_HEAD_INIT
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyVarObject_HEAD_INIT
PyVarObject	https://docs.python.org/3/c-api/structures.html#c.PyVarObject
ob_size	https://docs.python.org/3/c-api/structures.html#c.PyVarObject.ob_size
¶	https://docs.python.org/3/c-api/structures.html#implementing-functions-and-methods
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunctionWithKeywords
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
METH_VARARGS \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-varargs-meth-keywords
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunctionFast
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
METH_FASTCALL	https://docs.python.org/3/c-api/structures.html#c.METH_FASTCALL
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunctionFastWithKeywords
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
METH_FASTCALL \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-fastcall-meth-keywords
¶	https://docs.python.org/3/c-api/structures.html#c.PyCMethod
METH_METHOD \| METH_FASTCALL \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-method-meth-fastcall-meth-keywords
¶	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
¶	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_name
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
¶	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_meth
¶	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_flags
¶	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_doc
ml_meth	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_meth
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
ml_flags	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_flags
¶	https://docs.python.org/3/c-api/structures.html#c.METH_VARARGS
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyArg_ParseTuple()	https://docs.python.org/3/c-api/arg.html#c.PyArg_ParseTuple
PyArg_UnpackTuple()	https://docs.python.org/3/c-api/arg.html#c.PyArg_UnpackTuple
¶	https://docs.python.org/3/c-api/structures.html#c.METH_KEYWORDS
METH_VARARGS \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-varargs-meth-keywords
METH_FASTCALL \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-fastcall-meth-keywords
METH_METHOD \| METH_FASTCALL \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-method-meth-fastcall-meth-keywords
METH_VARARGS	https://docs.python.org/3/c-api/structures.html#c.METH_VARARGS
METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#c.METH_KEYWORDS
PyCFunctionWithKeywords	https://docs.python.org/3/c-api/structures.html#c.PyCFunctionWithKeywords
PyArg_ParseTupleAndKeywords()	https://docs.python.org/3/c-api/arg.html#c.PyArg_ParseTupleAndKeywords
¶	https://docs.python.org/3/c-api/structures.html#c.METH_FASTCALL
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyCFunctionFast	https://docs.python.org/3/c-api/structures.html#c.PyCFunctionFast
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
stable ABI	https://docs.python.org/3/c-api/stable.html#stable-abi
METH_FASTCALL	https://docs.python.org/3/c-api/structures.html#c.METH_FASTCALL
METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#c.METH_KEYWORDS
METH_FASTCALL	https://docs.python.org/3/c-api/structures.html#c.METH_FASTCALL
PyCFunctionFastWithKeywords	https://docs.python.org/3/c-api/structures.html#c.PyCFunctionFastWithKeywords
vectorcall protocol	https://docs.python.org/3/c-api/call.html#vectorcall
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.METH_METHOD
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
METH_METHOD \| METH_FASTCALL \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-method-meth-fastcall-meth-keywords
METH_METHOD	https://docs.python.org/3/c-api/structures.html#c.METH_METHOD
METH_FASTCALL	https://docs.python.org/3/c-api/structures.html#c.METH_FASTCALL
METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#c.METH_KEYWORDS
METH_FASTCALL \| METH_KEYWORDS	https://docs.python.org/3/c-api/structures.html#meth-fastcall-meth-keywords
PyCMethod	https://docs.python.org/3/c-api/structures.html#c.PyCMethod
¶	https://docs.python.org/3/c-api/structures.html#c.METH_NOARGS
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
METH_NOARGS	https://docs.python.org/3/c-api/structures.html#c.METH_NOARGS
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
Py_UNUSED	https://docs.python.org/3/c-api/intro.html#c.Py_UNUSED
¶	https://docs.python.org/3/c-api/structures.html#c.METH_O
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
METH_O	https://docs.python.org/3/c-api/structures.html#c.METH_O
PyArg_ParseTuple()	https://docs.python.org/3/c-api/arg.html#c.PyArg_ParseTuple
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.METH_CLASS
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
classmethod()	https://docs.python.org/3/library/functions.html#classmethod
¶	https://docs.python.org/3/c-api/structures.html#c.METH_STATIC
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
staticmethod()	https://docs.python.org/3/library/functions.html#staticmethod
¶	https://docs.python.org/3/c-api/structures.html#c.METH_COEXIST
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
__contains__()	https://docs.python.org/3/reference/datamodel.html#object.__contains__
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCMethod_Type
types.BuiltinMethodType	https://docs.python.org/3/library/types.html#types.BuiltinMethodType
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCMethod_Check
PyCMethod_Type	https://docs.python.org/3/c-api/structures.html#c.PyCMethod_Type
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCMethod_CheckExact
PyCMethod_Check()	https://docs.python.org/3/c-api/structures.html#c.PyCMethod_Check
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyMethodDef	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCMethod_New
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
callable	https://docs.python.org/3/glossary.html#term-callable
callable	https://docs.python.org/3/glossary.html#term-callable
callable	https://docs.python.org/3/glossary.html#term-callable
None	https://docs.python.org/3/library/constants.html#None
function.__module__	https://docs.python.org/3/reference/datamodel.html#function.__module__
METH_METHOD	https://docs.python.org/3/c-api/structures.html#c.METH_METHOD
PyTypeObject	https://docs.python.org/3/c-api/type.html#c.PyTypeObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_Type
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
types.BuiltinFunctionType	https://docs.python.org/3/library/types.html#types.BuiltinFunctionType
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_Check
PyCFunction_Type	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_Type
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_CheckExact
PyCFunction_Check()	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_Check
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyMethodDef	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_NewEx
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyMethodDef	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_New
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GetFlags
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
ml_flags	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_flags
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GET_FLAGS
PyCFunction_GetFlags()	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GetFlags
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GetFunction
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
ml_meth	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef.ml_meth
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GET_FUNCTION
PyCFunction_GetFunction()	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GetFunction
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GetSelf
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyCFunction	https://docs.python.org/3/c-api/structures.html#c.PyCFunction
PyMethodDef	https://docs.python.org/3/c-api/structures.html#c.PyMethodDef
PyModuleDef	https://docs.python.org/3/c-api/module.html#c.PyModuleDef
borrowed reference	https://docs.python.org/3/glossary.html#term-borrowed-reference
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GET_SELF
PyCFunction_GetSelf()	https://docs.python.org/3/c-api/structures.html#c.PyCFunction_GetSelf
¶	https://docs.python.org/3/c-api/structures.html#accessing-attributes-of-extension-types
¶	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
tp_members	https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_members
¶	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.name
¶	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.type
Member types	https://docs.python.org/3/c-api/structures.html#pymemberdef-types
Py_ssize_t	https://docs.python.org/3/c-api/intro.html#c.Py_ssize_t
¶	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.offset
¶	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.flags
Member flags	https://docs.python.org/3/c-api/structures.html#pymemberdef-flags
¶	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.doc
PyDoc_STR	https://docs.python.org/3/c-api/intro.html#c.PyDoc_STR
flags	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.flags
Py_READONLY	https://docs.python.org/3/c-api/structures.html#c.Py_READONLY
Py_T_STRING	https://docs.python.org/3/c-api/structures.html#c.Py_T_STRING
Py_READONLY	https://docs.python.org/3/c-api/structures.html#c.Py_READONLY
Py_T_OBJECT_EX	https://docs.python.org/3/c-api/structures.html#c.Py_T_OBJECT_EX
T_OBJECT	https://docs.python.org/3/c-api/structures.html#c.T_OBJECT
PyType_FromSpec()	https://docs.python.org/3/c-api/type.html#c.PyType_FromSpec
tp_vectorcall_offset	https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_vectorcall_offset
tp_dictoffset	https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_dictoffset
tp_weaklistoffset	https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_weaklistoffset
Py_TPFLAGS_MANAGED_DICT	https://docs.python.org/3/c-api/typeobj.html#c.Py_TPFLAGS_MANAGED_DICT
Py_TPFLAGS_MANAGED_WEAKREF	https://docs.python.org/3/c-api/typeobj.html#c.Py_TPFLAGS_MANAGED_WEAKREF
Py_RELATIVE_OFFSET	https://docs.python.org/3/c-api/structures.html#c.Py_RELATIVE_OFFSET
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyMemberDef	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef
¶	https://docs.python.org/3/c-api/structures.html#c.PyMember_GetOne
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyMemberDef	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.PyMember_SetOne
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
¶	https://docs.python.org/3/c-api/structures.html#member-flags
PyMemberDef.flags	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.flags
¶	https://docs.python.org/3/c-api/structures.html#c.Py_READONLY
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
¶	https://docs.python.org/3/c-api/structures.html#c.Py_AUDIT_READ
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
audit event	https://docs.python.org/3/library/audit_events.html#audit-events
¶	https://docs.python.org/3/c-api/structures.html#c.Py_RELATIVE_OFFSET
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
offset	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.offset
Py_tp_members	https://docs.python.org/3/c-api/typeobj.html#c.Py_tp_members
slot	https://docs.python.org/3/c-api/type.html#c.PyType_Slot
basicsize	https://docs.python.org/3/c-api/type.html#c.PyType_Spec.basicsize
tp_members	https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_members
PyMemberDef.offset	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.offset
Py_AUDIT_READ	https://docs.python.org/3/c-api/structures.html#c.Py_AUDIT_READ
Py_READONLY	https://docs.python.org/3/c-api/structures.html#c.Py_READONLY
¶	https://docs.python.org/3/c-api/structures.html#member-types
PyMemberDef.type	https://docs.python.org/3/c-api/structures.html#c.PyMemberDef.type
TypeError	https://docs.python.org/3/library/exceptions.html#TypeError
ValueError	https://docs.python.org/3/library/exceptions.html#ValueError
del	https://docs.python.org/3/reference/simple_stmts.html#del
delattr()	https://docs.python.org/3/library/functions.html#delattr
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_BYTE
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_SHORT
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_INT
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_LONG
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_LONGLONG
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_UBYTE
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_UINT
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_USHORT
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_ULONG
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_ULONGLONG
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_PYSSIZET
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
Py_ssize_t	https://docs.python.org/3/c-api/intro.html#c.Py_ssize_t
int	https://docs.python.org/3/library/functions.html#int
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_FLOAT
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
float	https://docs.python.org/3/library/functions.html#float
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_DOUBLE
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
float	https://docs.python.org/3/library/functions.html#float
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_BOOL
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
bool	https://docs.python.org/3/library/functions.html#bool
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_STRING
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
str	https://docs.python.org/3/library/stdtypes.html#str
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_STRING_INPLACE
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
str	https://docs.python.org/3/library/stdtypes.html#str
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_CHAR
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
str	https://docs.python.org/3/library/stdtypes.html#str
¶	https://docs.python.org/3/c-api/structures.html#c.Py_T_OBJECT_EX
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
object	https://docs.python.org/3/library/functions.html#object
Py_READONLY	https://docs.python.org/3/c-api/structures.html#c.Py_READONLY
AttributeError	https://docs.python.org/3/library/exceptions.html#AttributeError
¶	https://docs.python.org/3/c-api/structures.html#c.T_OBJECT
¶	https://docs.python.org/3/c-api/structures.html#c.T_NONE
Py_READONLY	https://docs.python.org/3/c-api/structures.html#c.Py_READONLY
¶	https://docs.python.org/3/c-api/structures.html#defining-getters-and-setters
¶	https://docs.python.org/3/c-api/structures.html#c.PyGetSetDef
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyTypeObject.tp_getset	https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_getset
¶	https://docs.python.org/3/c-api/structures.html#c.PyGetSetDef.name
getter	https://docs.python.org/3/c-api/structures.html#c.getter
¶	https://docs.python.org/3/c-api/structures.html#c.PyGetSetDef.get
setter	https://docs.python.org/3/c-api/structures.html#c.setter
¶	https://docs.python.org/3/c-api/structures.html#c.PyGetSetDef.set
¶	https://docs.python.org/3/c-api/structures.html#c.PyGetSetDef.doc
¶	https://docs.python.org/3/c-api/structures.html#c.PyGetSetDef.closure
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.getter
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
¶	https://docs.python.org/3/c-api/structures.html#c.setter
Stable ABI	https://docs.python.org/3/c-api/stable.html#stable
PyObject	https://docs.python.org/3/c-api/structures.html#c.PyObject
Table of Contents	https://docs.python.org/3/contents.html
Common Object Structures	https://docs.python.org/3/c-api/structures.html
Base object types and macros	https://docs.python.org/3/c-api/structures.html#base-object-types-and-macros
Implementing functions and methods	https://docs.python.org/3/c-api/structures.html#implementing-functions-and-methods
Accessing attributes of extension types	https://docs.python.org/3/c-api/structures.html#accessing-attributes-of-extension-types
Member flags	https://docs.python.org/3/c-api/structures.html#member-flags
Member types	https://docs.python.org/3/c-api/structures.html#member-types
Defining Getters and Setters	https://docs.python.org/3/c-api/structures.html#defining-getters-and-setters
Object Life Cycle	https://docs.python.org/3/c-api/lifecycle.html
Type Object Structures	https://docs.python.org/3/c-api/typeobj.html
Report a bug	https://docs.python.org/3/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/c-api/structures.rst?plain=1
index	https://docs.python.org/3/genindex.html
modules	https://docs.python.org/3/py-modindex.html
next	https://docs.python.org/3/c-api/typeobj.html
previous	https://docs.python.org/3/c-api/lifecycle.html
Python	https://www.python.org/
3.14.2 Documentation	https://docs.python.org/3/index.html
Python/C API Reference Manual	https://docs.python.org/3/c-api/index.html
Object Implementation Support	https://docs.python.org/3/c-api/objimpl.html
Common Object Structures	https://docs.python.org/3/c-api/structures.html
Copyright	https://docs.python.org/3/copyright.html
History and License	https://docs.python.org/license.html
Please donate.	https://www.python.org/psf/donations/
Found a bug	https://docs.python.org/bugs.html
Sphinx	https://www.sphinx-doc.org/

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