def get_balance(self): return self.__balance

def area(self): return 3.14 * self.radius ** 2

rectangle = Rectangle(4, 5) circle = Circle(3)

class PayPalPaymentGateway(PaymentGateway): def process_payment(self, amount): print(f"Processing payment of ${amount} using PayPal.")

print(rectangle.area()) # Output: 20 print(circle.area()) # Output: 28.26

class Shape: def area(self): pass

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

class PaymentGateway(ABC): @abstractmethod def process_payment(self, amount): pass

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).

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

Part 4 Oop High Quality [portable] | Python 3 Deep Dive

def get_balance(self): return self.__balance

def area(self): return 3.14 * self.radius ** 2

rectangle = Rectangle(4, 5) circle = Circle(3) python 3 deep dive part 4 oop high quality

class PayPalPaymentGateway(PaymentGateway): def process_payment(self, amount): print(f"Processing payment of ${amount} using PayPal.")

print(rectangle.area()) # Output: 20 print(circle.area()) # Output: 28.26 def get_balance(self): return self

class Shape: def area(self): pass

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

class PaymentGateway(ABC): @abstractmethod def process_payment(self, amount): pass

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).

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