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LLD: Master Open Close Principle in Python and Rust
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The Open/Closed Principle (OCP) is one of the core principles in software design (it’s the “O” in the popular SOLID principles). In a nutshell, this principle guides us to write code that doesn’t require changing existing parts whenever we need to add new features. This keeps our programs more stable and easier to maintain.
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What is the Open/Closed Principle?
Software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification. In simpler terms, this means you can extend (add to) the behavior of a piece of code, but you shouldn’t have to modify the code that’s already written and working.
Think of it this way, You design a class or module so that you can plug in new functionalities for new requirements (extensions) instead of update or rewrite the core each time. The goal is that once you have a class that works and is tested, you won’t touch its source code in the future just to add new features.
Why is OCP Important?
- Avoids Breaking Existing Functionality: When you don’t…
