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

Zachary Radcliff
Zachary Radcliff
4,276 Points

__str__ assertion error

I can not seem to find out why my code is breaking..

book.py
class Book:
    def __init__(self, author, title):
        self.author = author
        self.title = title
    def __str__(self):
        return 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
231,268 Points

The instructions ask you to "Return a string with the author and title of the book.", but this code is returning a tuple instead.