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Python Object-Oriented Python Dice Roller Compare and Contrast

Posted by Rob Hunsicker
Rob Hunsicker
7,929 Points

What is this asking for?

I more or less copied this from the Dice example and ran the same tests in the workspace. I created song instances and comparing two instances for length (s1.length == s2.length, etc.) gives the right answers. So I guess I don't understand what I'm supposed to be doing.

songs.py 
class Song:
    def __init__(self, artist, title, length):
        self.artist = artist
        self.title = title
        self.length = length

    def __int__(self, length):
        return self.length

    def __eq__(self, other):
        return int(self) == other

    def __lt__(self, other):
        return int(self) < other

    def __gt__(self, other):
        return int(self) > other

    def __le__(self, other):
        return int(self) < other or int(self) == other

    def __ge__(self, other):
        return int(self) > other or int(self) == other

1 Answer

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

The __int__ method should take only one argument (self).

Also, you can simplify the "or equals" comparisons using the operators intended for the purpose. For example:

        return int(self) < other or int(self) == other  # instead of this...
        return int(self) <= other                       # you can do this
Rob Hunsicker
Rob Hunsicker
7,929 Points

That fixed it, thanks! I think I see how int() works now.

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

Rob Hunsicker — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!