Day 4: Properties, Dataclasses & SOLID
Thu, Jun 11 @ 19:30 UTC (2 hours)
Today is about designing code that lasts. Bug reports arrive, boilerplate piles up, and a new requirement lands that would tempt you to hack the wrong place. The OOP toolkit answers all three.
Properties guard state. They’re read-only attributes, validated setters, computed values that can’t go stale. Dataclasses cut boilerplate dramatically on the small classes that fill out every codebase. Two SOLID principles let you extend behavior without rewriting existing classes (Open/Closed) and swap out dependencies in tests (Dependency Inversion).
The day closes with a full simulation running in your terminal with every concept from the four days working together.
Today’s concepts:
