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Python Object-Oriented Python (retired) Inheritance __str__

Brian York
Brian York
6,213 Points
Posted by Brian York
Brian York
6,213 Points

Unpacking question

Hi,

For this challenge I have to use the str method, which I understand, but I have a question about unpacking.

The code that works is shown below in the snippet of my code.

I want to know why, on the last line I can't use this: """ return "player 1: {}; Player 2: {}".format(**self.score) """

Since self.score is a tuple, shouldn't I just be able to unpack the tuple instead of listing both elements of the tuple by index?

game_str.py 
from game import Game

class GameScore(Game):

    def __str__(self):
        return "player 1: {}; Player 2: {}".format(self.score[0], self.score[1])

1 Answer

Brian York
Brian York
6,213 Points
Brian York
Brian York
6,213 Points

Nevermind! I figured out that the new line of code does work, but I have to use single star instead of the double star. I believe this is because the double star specifically unpacks keyword arguments, like in dictionaries, but the single star unpacks an unknown number of arguments that are not key-worded.

(When I write the stars it just italicizes words, which is confusing.)

If this is not correct, please inform me.