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Python

Tiana Manzano
PLUS
Tiana Manzano
Courses Plus Student 2,248 Points
Posted by Tiana Manzano
Tiana Manzano
Courses Plus Student 2,248 Points

morse.py

I'm not sure why I am getting the error answer if my output succesfully produces 'dot-dot-dot'. Did I do something incorrectly?

morse.py 
class Letter:
    def __init__(self, pattern=None):
        self.pattern = pattern
    def __str__(self):
       morse = " "
       for item in self.pattern:
            if item == '.':
                morse += "dot"
            elif item == "_":
                morse += "dash"
            morse += "-"
       morsec = morse[:-1]
       return morsec

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

3 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

A space is considered a character in the string so you weren't producing 'dot-dot-dot'. You were producing ' dot-dot-dot' (spacedot-dot-dot). If you initialize an empty string there is no space.

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

You have a leading space because you initialized morse = " ". Try morse = "".

Tiana Manzano
Tiana Manzano
Courses Plus Student 2,248 Points
Tiana Manzano
Tiana Manzano
Courses Plus Student 2,248 Points

hey!! that totally worked! But would it be possible for you to explain why please?

Joanita Nyashanu
Joanita Nyashanu
3,099 Points
Joanita Nyashanu
Joanita Nyashanu
3,099 Points

When you put white space inside your quotes python considers it a character eg. " ". However when there is no space it is considered an empty string eg. "". So the difference is the white space and no space inside quotes of your initialized string variable 'morse'