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

Jason Smith
Jason Smith
8,361 Points

Still getting bummer after applying your help

can you help me spot the syntax error?

morse.py
class Letter:
    def __init__(self, pattern=None):
        self.pattern = pattern
    def __str__(self):
        code = []
        translate = ""
        for morse in self.pattern:
            if morse == ".":
                code.append("dot")
            elif morse == "_":
                code.append("dash")
        translate = code.join("-")
        return translate

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

2 Answers

Eric M
Eric M
11,517 Points

Hi Jason,

join() is a String method, not a List method.

The syntax you want for joining items from a list named code into a string delimited by - is:

"-".join(code)
Jason Smith
Jason Smith
8,361 Points

thanks! worked like a charm!