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

How do i use the loop on pattern

How do i iterate or loop through the pattern attribute

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

    def __str__(self, pattern_test):
        pattern_test = []
        for pattern in pattern_test:
            return str(self.pattern)


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

1 Answer

Steven Parker
Steven Parker
231,248 Points

Your loop syntax is good, but you've used the new variable as the iterator instead of the pattern. Instead, use:

for pattern in self.pattern:

Also, a different loop variable name might help avoid confusion. Perhaps something like "element" or "symbol"?

Then, you'll still need to add the code to convert the pattern characters ("." and "_") into the output string ("dot" and "dash" with "-" separators).