3. Classes and Inheritance

As an object-oriented programming language, Python supports a full range of features, such as inheritance, polymorphism, and encapsulation. Getting things done in Python often requires writing new classes and defining how they interact through their interfaces and hierarchies.

Python’s classes and inheritance make it easy to express your program’s intended behaviors with objects. They allow you to improve and expand functionality over time. They provide flexibility in an environment of changing requirements. Knowing how to use them well enables you to write maintainable code.

Item 22: Prefer Helper Classes Over Bookkeeping with Dictionaries and Tuples

Python’s built-in dictionary type is wonderful for maintaining dynamic ...

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