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Python

Posted by Jerry Avila
Jerry Avila
5,523 Points

Let's practice using @classmethod!

Not sure what is wrong with the Code but keep Bummer try again, Also how could this be tested in a work space?

morse.py 
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 == '.':
                output.append('dot')
            else:
                output.append('dash')
        return '-'.join(output)

    @classmethod
    def from_string(cls, bslist):
        output = []
        split_bslist = bslist.split('-")
        for blip in bslist:
            if blip == 'dot':
               output.append('.')
            elif blip == 'dash':
               output.append('-')              
        return output


class S(Letter):
    def __init__(self):
         pattern = ['.', '.', '.']
         super().__init__(pattern)
Jerry Avila
Jerry Avila
5,523 Points

Thanks Steven, that worked

1 Answer

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

You're close, but:

  • quotes can be " or ', but must be used in matched pairs (check the "split" argument)
  • the loop should iterate on the list created by splitting the string instead of the string itself
  • "dash"es should be translated into underscores ('_') instead of hyphens ('-')
  • instead of just the pattern, the method should return a class instance with the pattern in it