Which module is used to define abstract classes in Python?  abcabstractabclassabstractclass

In Python, the module used to define abstract classes is the abc module. The term "abc" stands for "Abstract Base Classes." This module provides the infrastructure for defining abstract base classes and allows you to create classes that cannot be instantiated directly, which means they must be subclassed by other classes that implement the abstract methods defined in them.

Using the abc module, you can ensure that a derived class implements particular methods from the abstract base class, providing a clearer structure and enforcing guidelines in your code. Here's a brief example of how to use it:

from abc import ABC, abstractmethod

class MyAbstractClass(ABC):
    
    @abstractmethod
    def my_abstract_method(self):
        pass

class MyConcreteClass(MyAbstractClass):
    
    def my_abstract_method(self):
        print("Implementation of abstract method.")

In this example, MyAbstractClass is an abstract base class that cannot be instantiated directly, while MyConcreteClass provides an implementation for the abstract method.