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 Object-Oriented Python Advanced Objects Iterable Album

Please help:)

Here is a class called Album that holds a list of songs. Add an iter method to our Album class and use yield or yield from so the songs in our album can be iterated through.

iter_album.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):
        new_list = []
        my_list = string.split("_")

        for item in my_list:
            if item == 'dot':
                new_list.append('.')
            elif item == "dash":
                new_list.append("_")

        return cls(new_list)


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

1 Answer

Josh Keenan
Josh Keenan
20,315 Points

The file attached isn't related to the challenge linked so I'll help with the challenge

class Album:
    def __init__(self):
        self.songs = []
    def add(self, song):
        self.songs.append(song)
    # insert your code here

    def __iter__(self):
        # solve problem here

You are needing to yield the songs stored in self.songs. Hope this helps