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 Malcolm Aldrin Masumba
Malcolm Aldrin Masumba
3,689 Points

I created the classmethod but what other things am i to pass in

In this case should i return the pattern or output list

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, pattern):
        return cls(output)




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

1 Answer

Steven Parker
Steven Parker
229,744 Points
Steven Parker
Steven Parker
229,744 Points

You won't need to pass anything into this method other than a string.

The instructions say the method "takes a string like "dash-dot" and creates an instance with the correct pattern". So you still need to:

  • convert the string argument into a pattern
  • return a new class instance that contains the pattern