"Descriptors" are objects that describe some attribute of an object. They are found in the dictionary of type objects.
PyTypeObject PyProperty_Type
The type object for the built-in descriptor types.
PyObject* PyDescr_NewGetSet(PyTypeObject *type, struct PyGetSetDef *getset)
Return value: New reference.PyObject* PyDescr_NewMember(PyTypeObject *type, struct PyMemberDef *meth)
Return value: New reference.PyObject* PyDescr_NewMethod(PyTypeObject *type, struct PyMethodDef *meth)
Return value: New reference.PyObject* PyDescr_NewWrapper(PyTypeObject *type, struct wrapperbase *wrapper, void *wrapped)
Return value: New reference.PyObject* PyDescr_NewClassMethod(PyTypeObject *type, PyMethodDef *method)
Return value: New reference.int PyDescr_IsData(PyObject *descr)
Return true if the descriptor objects descr describes a data attribute, or false if it describes a method. descr must be a descriptor object; there is no error checking.