Python - Abstract Class

python-abstract-class.py

"""
Python - Abstract Class
Yes. Python has Abstract Base Class module allows to enforce that a derived class implements a particular method using a special @abstractmethod decorator on that method.
"""
from abc import ABCMeta, abstractmethod

class Animal:
    __metaclass__ = ABCMeta

    @abstractmethod
    def say_something(self): return "I'm an animal!"

class Cat(Animal):
    def say_something(self):
        s = super(Cat, self).say_something()
        return "%s - %s" % (s, "Miauuu")

>>> c = Cat()
>>> c.say_something()
#"I'm an animal! - Miauu"