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Python

Daniel Fragoso
Daniel Fragoso
5,333 Points
Posted by Daniel Fragoso
Daniel Fragoso
5,333 Points

I don't get how to pass the S subclass's pattern attribute into a method in its parent class Letter

Can anyone help me out with this?

morse.py 
class Letter:
    def __init__(self, pattern=None):
        self.pattern = pattern
    def __str__(self, pattern):
        s=""
        for item in pattern:
            if item == '.':
                s+="dot-"
            elif item == '_':
                s+="dash-"
            else:
                pass
        return s[0:len(s)-1]


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

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,423 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

You are very close! The Letter.__str__ method does not need accept a "pattern" argument. Instead, the method should reference the instance attribute self.pattern

  • remove the unnecessary pattern parameter
  • reference self.pattern instead of pattern in the for loop
Daniel Fragoso
Daniel Fragoso
5,333 Points
Daniel Fragoso
Daniel Fragoso
5,333 Points

I had already figured it out, but thanks anyway! :)