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Python

donald kaiser
donald kaiser
9,736 Points
Posted by donald kaiser
donald kaiser
9,736 Points

Object-Oriented Code Challenge @classmethod.

As the instructions suggested, I created the class method but I'm not sure if my code is not getting me the correct outputs. I checked for misspellings and I can't find any. Please help.

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

    def __iter__(self):
        yield from self.pattern

    def __str__(self):
        output = []
        for blip in self:
            if blip == '.':
                output.append('dot')
            else:
                output.append('dash')
        return '-'.join(output)

    @classmethod
    def from_string(cls, string):
        new_list = []
        my_list = string.split("-")
        for item in my_list:
            if item == 'dot':
                new_list.append('.')
            elif item == "dash":
                new_list.append("-")
        return cls(patternList)


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

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,972 Points

In the instructions:

creates an instance with the correct pattern (['_', '.']).

that is an underscore not a hyphen. So you would want:

new_list.append("_")

Then you should return cls(new_list). patternList is not defined.

donald kaiser
donald kaiser
9,736 Points
donald kaiser
donald kaiser
9,736 Points

Ok thanks Kris this worked.

Alfred Moha
Alfred Moha
8,205 Points
Alfred Moha
Alfred Moha
8,205 Points

@classmethod def from_string(cls, string): new_list = [] my_list = string.split("-") for item in my_list: if item == 'dot': new_list.append('.') elif item == "dash": new_list.append("_") return cls(new_list)

keep on saying no method from_string defined