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Instead of just writing functions, I now think in terms of objects, relationships, and real-world structures. Classes & Objects — the building blocks Constructors & Instance Variables Encapsulation — ...

A common Python performance mistake: We measure total runtime, then immediately optimize the function we dislike most. A better workflow: - Reproduce the slowdown. - Profile the app. - Identify the ...

Answer: Magic or dunder (double underscore) methods in Python are special methods that have double underscores at the beginning and end of their names. They allow developers to emulate built-in ...