Separating Concerns in Code

Master the Single Responsibility Principle (SRP) to build resilient, testable code modules.

Pyfessor

Lesson Briefing

"Complexity is a choice. We choose simplicity by ensuring every function, class, and module has exactly one reason to change. If your 'User' class also sends emails and connects to the database, it is fragile. We extract these into 'Services' and 'Repositories'."