ArjanCodes

ArjanCodes focuses on the layer most Python content skips: not syntax, but design — how to structure a codebase so it stays maintainable as it grows. Videos cover SOLID principles, design patterns, dependency injection, and real refactoring of messy code into something cleaner, applied specifically to Python rather than ported generically from Java or C#.

It’s aimed at developers who already know the language and want to write it better, not at absolute beginners — a natural next step after finishing Fluent Python or Automate the Boring Stuff.