Python 3 Deep Dive Part 4 Oop High Quality May 2026

Inheritance is a mechanism in OOP that allows one class to inherit the properties and behavior of another class. The child class inherits all the attributes and methods of the parent class and can also add new attributes and methods or override the ones inherited from the parent class.

In Python 3, a class is a template that defines the properties and behavior of an object. A class is essentially a blueprint or a design pattern that defines the characteristics of an object. An object, on the other hand, is an instance of a class, which has its own set of attributes (data) and methods (functions). python 3 deep dive part 4 oop high quality

def get_balance(self): return self.__balance Inheritance is a mechanism in OOP that allows

class Circle(Shape): def __init__(self, radius): self.radius = radius A class is essentially a blueprint or a

class Rectangle(Shape): def __init__(self, width, height): self.width = width self.height = height

stripe_gateway.process_payment(100) # Output: Processing payment of $100 using Stripe. paypal_gateway.process_payment(200) # Output: Processing payment of $200 using PayPal.

Encapsulation is the concept of hiding the internal implementation details of an object from the outside world. This is achieved by using access modifiers such as public, private, and protected.