SOLID Principle — O: Open/Closed Principle 🔥

Описание: Big if-else chains make your code fragile and hard to extend.
Every time you add a new feature, you must modify existing code — and that breaks the Open/Closed Principle.

Using polymorphism, we can extend the system by adding new classes without modifying existing logic.
This is the foundation of scalable and maintainable software architecture.

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Tags: solid principles, ocp, clean code, python, backend, software architecture

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