Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python

Luis Miguel Hernandez
Luis Miguel Hernandez
4,266 Points

I do not know what I should do to complete the challenge, @classmethod

What should I do after defining the 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)

    def from_string(cls, string):
        ????


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

1 Answer

Luis Miguel Hernandez
Luis Miguel Hernandez
4,266 Points

Just I need to transform the string something like the str method:

def from_string(string):
        string_loop = string.split('-')
        pattern= []
        for codigo in string_loop:
            if codigo == 'dash':
                pattern.append('_')
            else:
                pattern.append('.')
        return cls(pattern= pattern)