7.1.1 Type Objects

7.1.1 Type Objects

PyTypeObject: The C structure of the objects used to describe built-in types.

PyObject* PyType_Type: This is the type object for type objects; it is the same object as types.TypeType in the Python layer.

int PyType_Check(PyObject *o): Returns true if the object o is a type object, including instances of types derived from the standard type object. Returns false in all other cases.

int PyType_CheckExact(PyObject *o): Returns true if the object o is a type object, but not a subtype of the standard type object. Returns false in all other cases. New in version 2.2.

int PyType_HasFeature(PyObject *o, int feature): Returns true if the type object o sets the feature feature. Type features are denoted by single bit flags.

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. New in version 2.0.

int PyType_IsSubtype(PyTypeObject *a, PyTypeObject *b): Returns true if a is a subtype of b. New in version 2.2.

PyObject* PyType_GenericAlloc(PyTypeObject *type, int nitems): Return value: New reference.
New in version 2.2.

PyObject* PyType_GenericNew(PyTypeObject *type, PyObject *args, PyObject *kwds): Return value: New reference.
New in version 2.2.

int PyType_Ready(PyTypeObject *type): New in version 2.2.

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