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

Ernestas Petruoka
Ernestas Petruoka
1,856 Points

Please help I am lost in my code

What is wrong with my code?

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):
        l = string.split('-')
        s = []
        for blip in l:
            if blip == 'dash':
                s.append('_')
            elif blip == 'dot':
                s.append('.')
        return s


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

1 Answer

Steven Parker
Steven Parker
230,230 Points

You are really close! The instructions ask that the code "creates an instance with the correct pattern", but this code is returning the pattern itself.

So just make a new instance using it:

        return cls(s)

Happy coding! :christmas_tree: And for some holiday-season fun and coding practice, give Advent of Code a try! :santa: