Technical requirements
The code examples presented in this chapter and throughout the rest of the book are tested with Python 3.13. For brevity, code examples in the chapter may be partially implemented. Complete versions of all examples can be found in the book’s accompanying GitHub repository at https://github.com/PacktPublishing/Clean-Architecture-with-Python.
A note about the order in which we’ll cover the SOLID principles
While the SOLID principles are traditionally presented in the order of their acronyms, this book adopts a more strategic sequence. We’ll cover SRP, OCP, then ISP, followed by LSP, and finally DIP. The start of each section will detail the relationship between its topic and the ones before. This order creates a natural progression from writing clean, modular code to designing flexible, maintainable systems, directly supporting the goals of Clean Architecture.
