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Jacques Dutoit
5,142 PointsHow do you use the __eq__ method correctly?
here is my code : class Book: def init(self, author, title): self.author = author self.title = title
def __str__(self):
return f'{self.author}, {self.title}'
here is the question to answer: Add a eq method for this book class. It should check if the author and title of the book are the same and return true if they are and false if they aren’t.
my current answer:
def __eq__(self,other):
return self.author == other.author and self.title == other.title.
Doesn't seem to work
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 == other.author and self.title == other.title
from book import Book
class BookCase:
def __init__(self):
self.books = []
def add_books(self, book):
self.books.append(book)
1 Answer
Travis Alstrand
Treehouse Project ReviewerHiya Jacques Dutoit !
What you have in both of those code blocks for the __eq__ method have very slight issues that would need to be addressed but basically what you have is correct.
In the top code block there is a stray period at the end of the conditional that would need to be removed
In the larger code block, there cannot be a space between
__eq__and the parens(self, other)
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 == other.author and self.title == other.title
Nice work! Just little syntax errors 👍