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Python

Adam Tyler
Adam Tyler
14,865 Points
Posted by Adam Tyler
Adam Tyler
14,865 Points

Am I using __iter__ properly? I can't get this challenge to pass

I am unsure what I am doing wrong her, I put it into work spaces and it tells me I have inconsistent use of tabs and spaces in indentations

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

    def __str__(self):
        morseStr = ''
        for i in self.pattern:
            if i == '.':
                morseStr += '-dot'
            elif i == '_':
                morseStr += '-dash'
        morseStr = morseStr[1:]

        return morseStr

    def __iter__(self):
        yield from self.pattern


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

1 Answer

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

I know that Python will work with either spaces or tabs, but it won't allow you to mix them in the same file. But I don't see that here.

On the other hand, it looks like the "__str__" method has been changed from what was provided in the initial challenge code. For this challenge, you only need to add the "__iter__" method. Don't change any of the provided code!

Your "__iter__" method looks correct and should pass the challenge with no other changes made.

Adam Tyler
Adam Tyler
14,865 Points
Adam Tyler
Adam Tyler
14,865 Points

Thank you, I have since passed this challenge but the reason I was having an issue was because some of the lines in the code provided had too many spaces (the indentation was 5 spaces and this was leaving several red lines all over the code) so I edited that, but in the end I passed because I restarted and didn't edit anything. Odd, but thank anyway!

Steven Parker
Steven Parker
231,261 Points
Steven Parker
Steven Parker
231,261 Points

I didn't notice a space difference, but the content of the "__str__" method above is very different from the one the challenge provides. This one builds a string with concatenation, the challenge code builds a list and then joins it. Both are valid solutions, however.