Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Noah Foppe
Noah Foppe
5,299 Points

I dont know

give answer

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):
        if self.author == other.author and self.title == other.title:
            return True
        else:
            return False
bookcase.py 
from book import Book 

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

def add_books(self, book):
    self.books.append(book)
def __iter__(self):
    yield from self.books

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Your code is good, but somehow the indentation of your new lines and those for the add_books method that was provided above got altered.

Restore the proper indentation and you'll pass the challenge.

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

Control-] (close bracket) should shift anything highlighted to the right one stop.