Stop writing classes that break everything (Python SRP explained)

Most Python classes start simple. Then they grow — business logic, file writes, email sends, all in one place. Change one thing and you risk breaking everything else.

That's a Single Responsibility Principle violation. And there's a one-word test to find it.

In this video you'll learn:
- What SRP actually means (it's about stakeholders, not method count)
- A one-sentence test to spot violations in any codebase
- How to refactor a real-world OrderProcessor into clean, isolated classes
- Why SRP makes your code dramatically easier to test

The "and" test: complete this sentence about your class — "This class is responsible for ___". If you need the word "and", you've found the problem.
---
Part of an ongoing series on writing clean, maintainable Python.

GitHub Gist: https://gist.github.com/PragmaticProgrammer-YT/a3481f4e827870bcad2851d4e40eb12d

#Python #SoftwareEngineering #CleanCode #SOLID #PythonTips

Видео Stop writing classes that break everything (Python SRP explained) канала Pragmatic Programmer