Python 3 Deep Dive Part 4 Oop High Quality May 2026

def start_engine(self): print("The engine is started.")

class Car: def __init__(self, color, brand, model): self.color = color self.brand = brand self.model = model python 3 deep dive part 4 oop high quality

class PaymentGateway(ABC): @abstractmethod def process_payment(self, amount): pass def start_engine(self): print("The engine is started

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

class Circle(Shape): def __init__(self, radius): self.radius = radius

def deposit(self, amount): self.__balance += amount