morse.py. How do I troubleshoot morse.py from Python console.

Question

I am trying to troubleshoot this Challenge in Workshop. I feel like I am pretty close, but when trying to check in Console I am lost on how to request for results. The only step I am confident about is the "from morse import S", but after this not sure how to walk through my own manual test.

Any advice would be appreciated.

morse.py

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

    def __str__(self):
        j="-"
        morse_list=[]
        for item in self.pattern:
            if item == ".":
                morse_list.append("dot")
            if item == "_":
                morese_list.append("dash")
        return j.join(morse_list)

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

Answer 1 · 2018-04-16T06:38:09Z

April 16, 2018 6:38am

It would be difficult to debug solely using the S class because everything in the class is hard-coded. You can create other classes that inherit from the Letter class, or you may wish to import the Letter class and to test if there is issue in that code.

When debugging, it sometimes helps to look at what part of the code has not yet been exercised. This concept is called coverage testing. In the case of using S() are all branches of the Letter.__str__ method exercised?

Try instantiating other letters using Letter(pattern=new_pattern) where new_pattern has various values different from the pattern used in S. The error should be found quite quickly.

Post back if you need a bigger hint. Good luck!!

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cb123

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morse.py. How do I troubleshoot morse.py from Python console.

1 Answer

Chris Freeman

Chris Freeman