Originally published: 2010-02-04 16:06:33
Last updated: 2010-02-06 20:54:45
Author: Steven D'Aprano

This descriptor can be used to decorate methods, similar to the built-ins classmethod and staticmethod. It enables the caller to call methods on either the class or an instance, and the first argument passed to the method will be the class or the instance respectively.

This differs from classmethods, which always passes the class, and staticmethods, which don't pass either.

Like all descriptors, you can only use this in new-style classes.