How do I implement composition in Python?

How do I implement composition in Python?

Composition in Python is a design principle where a class is composed of one or more objects from other classes. This allows for code reuse and better organization.

Can you give me an example of composition in Python?

Sure! Let's say you have a class Engine and a class Car. Instead of inheriting from Engine, you can compose Car with an Engine object.

How would the code look for that?

Here's a simple example:

class Engine:
    def start(self):
        return 'Engine started'

class Car:
    def __init__(self, engine):
        self.engine = engine

    def start(self):
        return self.engine.start()

my_engine = Engine()
my_car = Car(my_engine)
print(my_car.start())  # Output: Engine started