class Circle: def __init__(self, radius): self.radius = radius # Uses setter if defined @property def radius(self): return self._radius
But this is not your average "classes and objects" tutorial. This is a into Python’s OOP internals. We’ll move beyond syntax and explore how Python truly implements encapsulation, inheritance, polymorphism, and composition. We’ll tackle method resolution order (MRO), descriptors, properties, slots, and metaclasses. python 3 deep dive part 4 oop high quality
: Do not overuse __ (double underscore). It breaks subclassing. Use _ for internal attributes and trust other developers. Python is a "consenting adults" language. 5. Inheritance Done Right: Composition over Inheritance Inheritance is overused. The Gang of Four principle: Favor object composition over class inheritance . class Circle: def __init__(self, radius): self
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: It determines which method is called when multiple parents define the same method. It also affects super() . Use _ for internal attributes and trust other developers
print(MyClass.version) # 1.0