4_interface_segregation_principle.py

"""
Interface Segregation Principle

- A client should depend on the smallest set of interface features: the fewest methods and attributes.
- Make fine-grained interfaces that are client-specific. Clients should not be forced to implement interfaces they do not use.
- In OOP, an interface is a set of methods an object MUST have.
"""
from abc import ABC, abstractmethod


class Movable(ABC):
    @abstractmethod
    def go(self):
        pass


class Flyable(Movable):
    @abstractmethod
    def fly(self):
        pass


class Car(Movable):
    def go(self):
        print("Going")


class Aircraft(Flyable):
    def go(self):
        print("Taxiing")

    def fly(self):
        print("Flying")


def main():
    car = Car()
    car.go()

    aircraft = Aircraft()
    aircraft.go()
    aircraft.fly()


if __name__ == "__main__":
    main()