What is `abc.ABC` and `@abstractmethod` used for in Python?

Question

Python Developer — Hard

What is `abc.ABC` and `@abstractmethod` used for in Python?

Accepted Answer

abc.ABC and @abstractmethod are used in Python to create abstract base classes. abc.ABC is a helper base class that enables the creation of abstract base classes, while @abstractmethod marks methods that must be implemented in non-abstract subclasses, ensuring interface contracts are enforced.