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Python

Posted by Andrew Gursky
Andrew Gursky
12,576 Points

Why isn't this working? - Morse Code Challenge

Not sure why this isn't the right solution.

morse.py 
class Letter:



    def __init__(self, pattern=None):
        self.pattern = pattern

    def __str__(self):
        newStr = ''
        for val in self.pattern:
            if val === '.':
                newStr+='dot-'
            elif val === '_':
                newStr+='dash-'
        return newStr



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

3 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,468 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points

You have the general idea. Please fix the following issues:

  • The if comparison is double-equals (==) not triple-equals
  • The newStr pattern has a trailing hyphen that needs trimming
  • The S.__str__ method is not defined. Add this method with a simple return super().__str__()

Post back if you need more help. Good Luck!!

Kevin Brennan
Kevin Brennan
19,920 Points
Kevin Brennan
Kevin Brennan
19,920 Points

Hi Andrew,

Chris has given you a few great clues, for your return on the __str__ as you are using a list don't forget the 'join' method.

Kev

Andrew Gursky
Andrew Gursky
12,576 Points
Andrew Gursky
Andrew Gursky
12,576 Points

Thanks guys! Both right:)