Make an abstract class inherit from another abstract class

A class that is derived from an abstract class cannot be instantiated unless all of its abstract methods are overridden.

from abc import ABC, abstractmethod
 
 
class A(ABC):
    def __init__(self, username):
        self.username = username
        super().__init__()
 
    @abstractmethod
    def name(self):
        pass
 
 
class B(A):
    @abstractmethod
    def age(self):
        pass
 
 
class C(B):
    def name(self):
        print(self.username)
 
    def age(self):
        return
 
 
c = C('Test1234')
c.name()

Sample output of above program.

Test1234

Python Programming

Make an abstract class inherit from another abstract class

Sample output of above program.