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Missing some minor detail in Morse Code Printer

I am getting the "correct" output for my code but I'm still getting an error.

class Letter:
    def __init__(self, pattern=None):
        self.pattern = pattern

    def __str__(self):
        hold = []
        for spot in self.pattern:
            if spot == '.':
            elif spot == '_':
        return("{}-{}-{}".format(hold[0], hold[1], hold[2]))

class S(Letter):
    def __init__(self):
        pattern = ['.', '.', '.']

1 Answer

I modified my return statement and the output was accepted. I modified my return statement to : return("-".join(hold))