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Python

Simon Amz
Simon Amz
4,606 Points
Posted by Simon Amz
Simon Amz
4,606 Points

result on morse.py

Hi, In the code attached, here is my str function, in ordre to replace "." by "dot" and "_" by "dash".

I test this code in my text editor with the following code and it works perfectly, but it raises an error on Treehouse text editor, I don't know why.

Here is the lines for the main except for the Letter class:

class S(Letter): def init(self): pattern = ['.', '', 'hello', 5.2, 'dog', '.', '', '.'] super().init(pattern)

simon = S() simon.str(simon.pattern)

and it gave me

"dot-dash-hello-5.2-dog-dot-dash-dot"

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

    def __str__(self, pattern):
        final_pattern = []
        for letter in pattern:
            if letter == ".":
                final_pattern.append("dot")
            elif letter == "_":
                final_pattern.append("dash")
            else:
                final_pattern.append(str(letter))
        final_pattern = "-".join(final_pattern)
        return(final_pattern)

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

4 Answers

Stuart Wright
Stuart Wright
41,118 Points
Stuart Wright
Stuart Wright
41,118 Points

Here are a couple of tips to help you arrive at the correct solution:

  • The str() method only needs one argument, 'self'.
  • You can then loop over 'self.pattern' instead of 'pattern'.
Simon Amz
Simon Amz
4,606 Points
Simon Amz
Simon Amz
4,606 Points

I tried and I got the same thing, everything works on my computer. Besides I don't have details about the error, I just got "BUMMER: Try again!"

Here is my code again:

#!usr/bin/python3

morse

class Letter: def init(self, pattern): self.pattern = pattern

def __str__(self):
    final_pattern = []
    for letter in self.pattern:
        if letter == ".":
            final_pattern.append("dot")
        elif letter == "_":
            final_pattern.append("dash")
        else:
            final_pattern.append(str(letter))
    final_pattern = "-".join(final_pattern)
    print(final_pattern)

class S(Letter): def init(self): pattern = ['.', 'dog', '', '*', '', 'test', '.', '.'] super().init(pattern)

simon = S() simon.str()

Stuart Wright
Stuart Wright
41,118 Points
Stuart Wright
Stuart Wright
41,118 Points

Close! You just need to return rather than print final_pattern.

Simon Amz
Simon Amz
4,606 Points
Simon Amz
Simon Amz
4,606 Points

Great it works, I was sure to replace the print by return and it didn't work as well. Never mind, thanks very much!