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Not Understood a single bit

Please help with all the coding instructions with explanation for the logic Please !!!

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

    def __iter__(self):
        yield from self.pattern

    def __str__(self):
        output = []
        for blip in self:
            if blip == '.':
        return '-'.join(output)

        def from_string(cls, pattern):
            pattern = []
            return cls(pattern)

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

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

The flow will be of the form

# split pattern argument into individual words
# loop over individual words creating a new list
# if word is "dash" add a "_", if a "dot", add a "."
# instantiate an new `cls` with the pattern argument the new word list
# return this instance

Post back if you need more hints. Good Luck!!