Does Python supports interfaces like in Java? Discuss.

Answer 1

An interface has methods that have no implementations. In Python, Abstract Base Classes provide this functionality. One has to do the following:

• import abc
• create a class to be used as the interface, with the following characteristics:
• define the __metaclass__ = abc.ABCMeta
• decorate the empty methods as @abc.abstractmethod
• register the implementation class with the base class defined as the interface

 

There's a great article on this pymotw.

 

Thanks.

 

Virgilio De Vera