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

How do I solve the __eq__ problem?

My code is below. I keep getting a syntax error. Thanks!

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

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

    def __eq__(self, other) 
        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

Megan Amendola
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STAFF
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Megan Amendola
Treehouse Teacher

Hi! First, your dunder eq method is missing the : after the parentheses - that's kicking off the syntax error. Second, you should be comparing the author and title of this book to the other book that is being passed in. So self.author == other.author for author and the same for the title.