Type Objects¶
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PyTypeObject
¶ The C structure of the objects used to describe built-in types.
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PyObject*
PyType_Type
¶ This is the type object for type objects; it is the same object as
type
in the Python layer.
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int
PyType_Check
(PyObject *o)¶ Return true if the object o is a type object, including instances of types derived from the standard type object. Return false in all other cases.
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int
PyType_CheckExact
(PyObject *o)¶ Return true if the object o is a type object, but not a subtype of the standard type object. Return false in all other cases.
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unsigned int
PyType_ClearCache
()¶ Clear the internal lookup cache. Return the current version tag.
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long
PyType_GetFlags
(PyTypeObject* type)¶ Return the
tp_flags
member of type. This function is primarily meant for use with Py_LIMITED_API; the individual flag bits are guaranteed to be stable across Python releases, but access totp_flags
itself is not part of the limited API.New in version 3.2:
New in version 3.2.
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void
PyType_Modified
(PyTypeObject *type)¶ 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.
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int
PyType_HasFeature
(PyObject *o, int feature)¶ Return true if the type object o sets the feature feature. Type features are denoted by single bit flags.
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int
PyType_IS_GC
(PyObject *o)¶ Return true if the type object includes support for the cycle detector; this tests the type flag
Py_TPFLAGS_HAVE_GC
.
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int
PyType_IsSubtype
(PyTypeObject *a, PyTypeObject *b)¶ Return true if a is a subtype of b.
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PyObject*
PyType_GenericAlloc
(PyTypeObject *type, Py_ssize_t nitems)¶ XXX: Document.
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PyObject*
PyType_GenericNew
(PyTypeObject *type, PyObject *args, PyObject *kwds)¶ XXX: Document.
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int
PyType_Ready
(PyTypeObject *type)¶ 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
0
on success, or return-1
and sets an exception on error.