Summary

Structural patterns are invaluable for creating clean, maintainable, and scalable code. They provide solutions for many of the challenges you’ll face in daily coding.

First, the adapter pattern serves as a flexible solution for harmonizing mismatched interfaces. We can use this pattern to bridge the gap between outdated legacy systems and modern interfaces, thus promoting more cohesive and manageable software systems.

Then, we discussed the decorator pattern that we use as a convenient way of extending the behavior of an object without using inheritance. Python, with its built-in decorator feature, extends the decorator concept even more by allowing us to extend the behavior of any callable without using inheritance or composition. The decorator pattern is a great solution for implementing cross-cutting concerns because they are generic and do not fit well into the OOP paradigm. We mentioned several categories of cross-cutting concerns in the Use cases for the...