Cannot understand challenge

Question

Hi , I am not able to understand what this challenge wants me to do. I have created a class method but not able to know what to do next .any help please

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,str):
        pass

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

Answer 1 · 2019-01-12T15:44:12Z

January 12, 2019 3:44pm

You are off to a good start! The “dot-dash” like string would be passed in as the parameter str. The remaining steps would be:

create a way to convert the input string into a list of “.” and “_” characters. A for loop works well here
create a new Letter object using the pattern created by the loop. Since the class is passed in as cls, you can use cls(pattern)
remember to return this object

Additionally, it is recommended to not use built-in keywords or objects types as variable names as this can cause unexpected side effects. string is a better choice than str.

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

Answer 2 · 2019-01-12T18:49:26Z

January 12, 2019 6:49pm

Thanks chris, ur advice helped a lot I passes the challenge

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Kushagra Patel

Kushagra Patel

Cannot understand challenge

2 Answers

Chris Freeman

Chris Freeman

Kushagra Patel

Kushagra Patel