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Python

Lukas Straumann
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Lukas Straumann
Python Web Development Techdegree Student 9,588 Points
Posted by Lukas Straumann
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Lukas Straumann
Python Web Development Techdegree Student 9,588 Points

How do I avoid the creation of a dash-dot string when the class is created? Thanks for any help on this.

My code actually creates the ['_','.'] from ('dash','dot') but when I return this as a class (cls) in the classmethod, then it gets converted back to a text, as the provided class does this with a provided argument. Any help on whats missing or wrong is greatly appreciated.

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, astring):
    words = astring.split('-')
    output = []
    for blip in words:
        if blip == 'dot':
            output.append('.')
        if blip == 'dash':
            output.append('_')
    print(output)
    return cls(output)

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

letter_obj = Letter.from_string('dash-dot') print('letter_obj: ',letter_obj)

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, apattern):
        #print('here',apattern)
        words = apattern.split('-')
        output = []
        for blip in words:
            if blip == 'dot':
                output.append('.')
            if blip == 'dash':
                output.append('_')
        return cls(output)


class S(Letter):
    def __init__(self):
         pattern = ['.', '.', '.']
         super().__init__(pattern)
Oszkár Fehér
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Oszkár Fehér
Treehouse Project Reviewer
Oszkár Fehér
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Oszkár Fehér
Treehouse Project Reviewer

hi Lukas. You can delete the question, under your post it should be 3 dots which has edit or delete option. Happy coding

1 Answer