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Python

Posted by tomasmotycka
tomasmotycka
7,158 Points

What´s wrong with my code in code challenge?

Let's use str to turn Python code into Morse code! OK, not really, but we can turn class instances into a representation of their Morse code counterparts.

I want you to add a str method to the Letter class that loops through the pattern attribute of an instance and returns "dot" for every "." (period) and "dash" for every "_" (underscore). Join them with a hyphen.

I've included an S class as an example (I'll generate the others when I test your code) and it's str output should be "dot-dot-dot".

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

        def __str__(self, value):
            printer = []

            for item in pattern:
                if item == ".":
                    printer.append("dot")

                elif item == "_":
                    printer.append("dash")

        return "-".join(printer)


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

1 Answer

Steven Parker
Steven Parker
243,173 Points
Steven Parker
Steven Parker
243,173 Points

I see a few issues:

  • the indentation makes it appear that the __str__ method is inside the __init__ method
  • the __str__ method should take only one argument (self)
  • the "pattern" is part of the instance and should be referenced as "self.pattern"