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

Posted by Kiran K
Kiran K
1,029 Points

I have added the __iter__ method. what is next?

Let's make our Letter class better for our Morse code challenge. Add an iter method to the Letter class so the letter's pattern can be iterated through. You'll want to use yield or yield from.

Do not convert the pattern to dots and dashes in iter.

morse.py 
class Letter:
    def __init__(self, pattern=None):
        self.pattern = pattern

    def __iter__(self):
        xpttern = self.pttern
        yield from xpttern

    def __str__(self):
        output = []
        for blip in self.pattern:
            if blip == '.':
                output.append('dot')
            else:
                output.append('dash')
        return '-'.join(output)


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

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

Just a typo. You have self.pttern instead of self.pattern.

Dantee Fluellen
Dantee Fluellen
1,499 Points
Dantee Fluellen
Dantee Fluellen
1,499 Points

why did he add a new attribute?