In this chapter, we’ve studied inheritance, composition, delegation, multiple inheritance, bound methods, and factories—all common patterns used to combine classes in Python programs. We’ve really only scratched the surface here in the design patterns domain, though. Elsewhere in this book you’ll find coverage of other design-related topics, such as:

For more details on design patterns, though, we’ll delegate to other resources on OOP at large. Although patterns are important in OOP work and are often more natural in Python than other languages, they are not specific to Python itself, and a subject that’s often best acquired by experience.