Advanced Python 3 Programming Techniques

Chapter 12. Class Decorators

Just as we can create decorators for functions and methods, we can also create decorators for entire classes. Class decorators take a class object (the result of the class statement), and should return a class—normally a modified version of the class they decorate. In this subsection we will study two class decorators to see how they can be implemented.

In the book’s examples there is a SortedList.py module that defines the Sort-edList custom collection class. This class aggregates a plain list as the private attribute self.__list, and eight of the SortedList class’s methods simply pass on their work to the private attribute. For example, here are how the Sort-edList.clear() and SortedList.pop() methods ...