Can you explain what ownership relation means in the context of object-oriented programming?

Ownership in object-oriented programming means that one object is responsible for creating, managing, and destroying another object.

This helps control the lifecycle of objects and prevent memory leaks or incorrect resource usage.

For example, if object A owns object B, then when A is destroyed, B is automatically destroyed as well. In Python, this is often implemented through composition — when an object contains another object as part of its state.

Example:

class Engine:
    pass

class Car:
    def __init__(self):
        self.engine = Engine()  # Car owns Engine

car = Car()
# When car is deleted, engine also becomes unavailable

Thus, ownership helps structure objects and manage their dependencies.