What are some examples of interfaces in Python?

What are some examples of interfaces in Python?

In Python, interfaces can be implemented using abstract base classes (ABCs). For example, you can create an interface for a shape with methods like area() and perimeter().

Can you show me a code example of an interface in Python?

Sure! Here's a simple example:

from abc import ABC, abstractmethod

class Shape(ABC):
    @abstractmethod
    def area(self):
        pass

    @abstractmethod
    def perimeter(self):
        pass

class Circle(Shape):
    def __init__(self, radius):
        self.radius = radius

    def area(self):
        return 3.14 * self.radius ** 2

    def perimeter(self):
        return 2 * 3.14 * self.radius

What is the purpose of using interfaces in Python?

Interfaces help define a contract for classes, ensuring that they implement specific methods. This promotes code consistency and reusability.

Are there any built-in interfaces in Python?

Yes, Python's collections module provides several built-in interfaces like Iterable, Container, and Sized.