Advanced Python 3 Programming Techniques

Chapter 6. Function and Method Decorators

A decorator is a function that takes a function or method as its sole argument and returns a new function or method that incorporates the decorated function or method with some additional functionality added. We have already made use of some predefined decorators, for example, @property and @classmethod. In this section we will learn how to create our own function decorators, and later in this short cut we will see how to create class decorators.

Class decorators

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For our first decorator example, let us suppose that we have many functions that perform calculations, and that some of these must ...