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Dunder methods

Double-underscore methods that hook into Python syntax: `__add__`, `__len__`, `__repr__`. Make your objects feel native.

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Related — OOP

ClassA blueprint for objects. Created with `class Foo:`. Defines attributes + methodsInstanceA specific object built from a class. `dog = Dog()` makes one instance of `Dog`.selfThe current instance, passed implicitly as the first argument to methods. By con__init__The constructor — runs when you call the class. Used to set instance attributes.InheritanceA class can inherit attributes and methods from a parent class: `class Dog(AnimaDataclassDecorator (`@dataclass`) that auto-generates `__init__`, `__repr__`, and `__eq__