Python 3 Deep Dive Part 4 Oop High Quality Page

class Circle: def __init__(self, radius): self.radius = radius # Uses setter if defined @property def radius(self): return self._radius

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@radius.setter def radius(self, value): if value < 0: raise ValueError("Radius cannot be negative") self._radius = value python 3 deep dive part 4 oop high quality

Welcome back to the Python 3 Deep Dive series. In previous parts, we explored iterators, generators, context managers, and function mastery. Now, we arrive at the heart of Python’s identity: Object-Oriented Programming (OOP) . class Circle: def __init__(self, radius): self

class Point: def __init__(self, x, y): self.x = x self.y = y # Each instance has a __dict__ (~72 bytes overhead + per attr) : class Point: def __init__(self, x, y): self

class Bird: def (self, mover, flyer): self.mover = mover self.flyer = flyer def move(self): return self.mover.move() def fly(self): return self.flyer.fly()

order = Order() order.quantity = 10 # Works