Python Day 13 : Abstract Classes | HackerRank 30 Days of Code Solutions

 

Task
Given a Book class and a Solution class, write a MyBook class that does the following:

• Inherits from Book
• Has a parameterized constructor taking these  parameters:
  1. string 
  2. string 
  3. int 
• Implements the Book class' abstract display() method so it prints these  lines:
  1. , a space, and then the current instance's .
  2. , a space, and then the current instance's .
  3. , a space, and then the current instance's .

Note: Because these classes are being written in the same file, you must not use an access modifier (e.g.: ) when declaring MyBook or your code will not execute.

Code:

from abc import ABCMeta, abstractmethod

class Book(object, metaclass=ABCMeta):

    def __init__(self,title,author):

        self.title=title

        self.author=author   

    @abstractmethod

    def display(): pass

#Write MyBook class

class MyBook(Book):

    def __init__(self, title, author, price):

        Book.__init__(self, title, author)

        self.price = price

    def display(self):

        print('Title: ' + self.title)

        print('Author: ' + self.author)

        print('Price: ' + str(self.price))

        

title=input()

author=input()

price=int(input())

new_novel=MyBook(title,author,price)

new_novel.display()