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Python

Eldin Guzin
Eldin Guzin
6,010 Points
Posted by Eldin Guzin
Eldin Guzin
6,010 Points

How do I join the strings together by a hyphen and am I on the right track here ? ---- Morse task ----

Thanks in advance

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

    for dot in pattern:
        def __str__(dot):
            if dot = ".":
                dot = "dot"
            elif dot = "_":
                dot = "dash"

            return dot



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

2 Answers

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,967 Points

To join with a hyphen you can use Python's join method. There is a quick tutorial here.

Some additional hints:

  • Your for loop should be inside the __str__ method
  • The only parameter for this method should be self
  • You should iterate over self.pattern
  • Use comparison operators in your if conditions. You are currently using assignment operators.
  • In your method create a new list variable and append "dot" or "dash" to that.
  • Then outside the loop return the joined list
Eldin Guzin
Eldin Guzin
6,010 Points
Eldin Guzin
Eldin Guzin
6,010 Points

What do you mean by saying "Use comparison operators in your if conditions. You are currently using assignment operators", What are comparison operators ? Anyways thanks for your great answer

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

A single equals sign assigns the value on the right to the variable on the left (and causes a syntax error in Python when used in an if statement)

if dot = ".":

A double equals sign compares the right and left sides to see if they are the same

if dot == ".":

Other comparison operators include greater than, less than, not equal to, etc.

Eldin Guzin
Eldin Guzin
6,010 Points
Eldin Guzin
Eldin Guzin
6,010 Points

got it! You are awesome