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

Will Duong
Will Duong
94 Points

I keep messing up

class Book: def init(self, author, title): self.author = author self.title = title

    def __str__(self):
        return f'{self.author} , {self.title}'

book_one = Book("John Green","Paper Towns") print(book_one)

what is wrong with the script? This is very frustrating...

book.py
class Book:
    def __init__(self, author, title):
        self.author = author
        self.title = title

        def __str__(self):
            return f'{self.author} , {self.title}'

book_one = Book("John Green","Paper Towns")
print(book_one)
bookcase.py
from book import Book


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

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

1 Answer

In f'{self.author} , {self.title}', there is a space before the comma that the challenge does not expect. Try removing the space.