Can Python classes be abstract?

Can Python classes be abstract?

Yes, Python can have abstract classes. They are defined using the abc module.

What is the purpose of an abstract class?

An abstract class allows you to define methods that must be created within any subclass, enforcing a contract.

Can you show me an example of an abstract class in Python?

Sure! Here's a simple example:

from abc import ABC, abstractmethod

class Animal(ABC):
    @abstractmethod
    def sound(self):
        pass

class Dog(Animal):
    def sound(self):
        return 'Bark'

What happens if I don't implement the abstract method in a subclass?

If you don't implement the abstract method, you'll get a TypeError when trying to instantiate the subclass.