There are many ways of implementing the Adapter design pattern in Python [Eckel08, page 207]. All the techniques demonstrated by Bruce Eckel use inheritance, but Python provides an alternative, and in my opinion, a more idiomatic way of implementing an Adapter. The alternative technique should be familiar to you, since it uses the internal dictionary of a class, and we have seen how to do that in Chapter 3, The Prototype Pattern.

Let's begin with the what we have part. Our application has a Computer class that shows basic information about a computer. All the classes of this example, including the Computer class are very primitive, because we want to focus on the Adapter pattern and not on how to make a class as complete as possible. ...

Get Mastering Python Design Patterns now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.