day_13_abstract_classes.py

from abc import ABCMeta, abstractmethod


# Abstract class
class Book(object, metaclass=ABCMeta):
    def __init__(self, title, author):
        self.title = title
        self.author = author
        super(Book, self).__init__()

    @abstractmethod
    def display(self):
        pass


# Concrete class
class MyBook(Book):
    def __init__(self, title, author, price):
        super().__init__(title, author)
        self.price = price

    def display(self):
        print("Title:", self.title)
        print("Author:", self.author)
        print("Price:", self.price)


def main():
    title = input()
    author = input()
    price = int(input())
    new_novel = MyBook(title, author, price)
    new_novel.display()


if __name__ == "__main__":
    main()