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Python

Stuck on the @classmethod

If I run this code without the cls infront of the new_list it returns the correct pattern. And when I add cls infront of the new_list it returns the "dash-dot" string. Is it because of the str or is something wrong with my from_string method ?

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, string):
        a = cls(string).pattern
        new_list = []
        for x in a.split('-'):
            if x == 'dot':
                new_list.append('.')
            elif x == 'dash':
                new_list.append('_')
        return cls(new_list)



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

1 Answer

Steven Parker
Steven Parker
229,967 Points

You're very close! You don't need to create that "a" variable, just split "string" as the loop iterator.

Oh thank you, it works !

Steven Parker
Steven Parker
229,967 Points

Glad I could help, and happy holidays! :christmas_tree: