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OOP & classes

Classes, instances, methods, dataclasses, and object-oriented design in Python.

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OOP & classes medium

Composable Predicates with the &, |, ~ Operators in Python

Define a reusable Predicate class that combines boolean checks with & (AND), | (OR), and ~ (NOT) operators.

predicates operator-overloading oop
Python
class Predicate:
    def __init__(self, func, name=None):
        self.func = func
        self.name = name or getattr(func, "__name__", "predicate")

    def __call__(self, value):
        return self.func(value)

    def __and__(self, other):
        return Predicate(lambda v: self(v) and other(v), f"({self.name} AN…
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