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Python Basic Object-Oriented Python Emulating Built-ins Emulating Built-ins

Posted by Emily H
Emily H
2,861 Points

Not sure what I'm doing wrong

Hi there, not sure what I'm doing wrong here, I've rewatched the "str" video in regards to this.

book.py 
class Book:
    def __init__(self, author, title):
        self.author = author
        self.title = title
    def __str__ (self):
        return f'{self.author} {self.title}'
bookcase.py 
from book import Book


class BookCase:
    def __init__(self):
       self.books = []

    def add_books(self, book):
        self.books.append(book)

1 Answer

Steven Parker
Steven Parker
229,644 Points
Steven Parker
Steven Parker
229,644 Points

Two issues:

  • the challenge doesn't like the space between the method name and the parentheses
  • the sample output shows a comma after the author, it expects your method to do the same