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Leslio McKeown
Python Development Techdegree Student 9,439 Pointsit keeps saying Bummer: AttributeError: 'BookCase' object has no attribute 'books'
Bummer: AttributeError: 'BookCase' object has no attribute 'books'
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
from book import Book
class BookCase:
def add_books(self, book):
self.books.append(book)
def __iter__(self):
yield from self.books
2 Answers
Chris Freeman
Treehouse Moderator 68,454 PointsHey Leslio McKeown, the attribute books needs to be defined in the class BookCase.
Similar to the Book class, and an __init__ method to BookCase that sets self.books = []
Post back if you need more help. Good luck!!!
Leslio McKeown
Python Development Techdegree Student 9,439 Pointsthis doesn't seem to work it shows: Bummer: TypeError: init() missing 1 required positional argument: 'books'
class BookCase:
def __init__(self):
self.books = []
def add_books(self, book):
self.books.append(book)
def __iter__(self):
yield from self.books
[MOD: added ```python formatting -cf]
Chris Freeman
Treehouse Moderator 68,454 PointsWhen I pasted your code into the challenge, it passed for me.
Leslio McKeown
Python Development Techdegree Student 9,439 PointsLeslio McKeown
Python Development Techdegree Student 9,439 Pointsby defined is it self.books = books?
because I'm still not understanding it even after rewatching the videos
I'm getting a new error message: TypeError: init() missing 1 required positional argument: 'books'
Chris Freeman
Treehouse Moderator 68,454 PointsChris Freeman
Treehouse Moderator 68,454 PointsIn the
add_booksmethod,bookinstances are append toself.booksSo,self.booksshould be initialized as an empty set [].Create the missing
__init__method with theBookCaseclass.