Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python

Calin Nicoara
Calin Nicoara
10,266 Points

Code challenge not passing although it works in workspaces

Hi everyone,

I am working on this code challenge (construction-zone in OOP python) however I can't see why it fails. In the workspace it seems to be working fine. Maybe there is something I am missing.

Thank you :)

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, strings):
        normal_patterns = []
        for overt_pattern in strings.split('-'):
            normal_patterns.append('.' if overt_pattern == 'dot' else '-')
        return cls(normal_patterns)


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

2 Answers

Your else is appending a hyphen instead of an underscore to normal_patterns. Other than that it should pass (but doesn't) unless I'm missing something too.

Weird. I copy/pasted and tried again (with an underscore) and it passed.

Calin Nicoara
Calin Nicoara
10,266 Points

You're right. I really did not see that it should be an underscore and not an actual dash like it says. Really confusing. Thank you! It passed now!