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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 `type` and `types.TypeType` in the Python layer.

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.

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. New in version 2.2.

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.

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)

  Return true if a is a subtype of b. New in version 2.2.

PyObject* `PyType_GenericAlloc`( | PyTypeObject *type, Py_ssize_t 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)

  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. New in version 2.2.