my_car = Car("Red", "Toyota", "Camry") print(my_car.color) # Output: Red my_car.start_engine() # Output: The engine is started.
class Circle(Shape): def __init__(self, radius): self.radius = radius
account = BankAccount("1234567890", 1000) print(account.get_balance()) # Output: 1000 account.deposit(500) print(account.get_balance()) # Output: 1500 python 3 deep dive part 4 oop high quality
In conclusion, Python 3 provides an excellent platform for implementing OOP principles. By understanding the concepts of classes and objects, inheritance, polymorphism, encapsulation, and abstract classes and interfaces, developers can create robust, scalable, and maintainable software systems. By following best practices and using design patterns, developers can write high-quality code that is easy to understand, modify, and extend.
def area(self): return self.width * self.height my_car = Car("Red", "Toyota", "Camry") print(my_car
def charge_battery(self): print("The battery is charging.")
Abstract classes and interfaces are used to define a blueprint for other classes to follow. An abstract class is a class that cannot be instantiated on its own and is meant to be inherited by other classes. By following best practices and using design patterns,
class StripePaymentGateway(PaymentGateway): def process_payment(self, amount): print(f"Processing payment of ${amount} using Stripe.")
class Shape: def area(self): pass
class Car: def __init__(self, color, brand, model): self.color = color self.brand = brand self.model = model
Polymorphism is the ability of an object to take on multiple forms. This can be achieved through method overriding or method overloading. Method overriding occurs when a child class provides a different implementation of a method that is already defined in its parent class.