Resistance in a wire functional program.

[kylemasc917]

This is the folder and modules that contain the Resistance in a Wire algorithm which uses functional programs outlined in the homework assignment to calculate the resistance in a wire for an inputted resistivity constant, cross-sectional area, and various lengths of wire. As well as the unit test module for the algorithm that checks against expected values and error such as a zero input or no input at all.

[kylemasc917]

I've deleted the binary files and made the requested changed aside from the lambda function as seemingly no matter how I implement it pylint views it as redundant.

[laserlab]

I've deleted the binary files and made the requested changed aside from the lambda function as seemingly no matter how I implement it pylint views it as redundant.

Yeah, I tried multiple ways now too since my suggestion doesn’t work. It just looks like that a lambda functions serve any purpose here … I guess a better way would be to give the resistance generator the function for calculating the resistance:

resfunc = lambda rho, length, area: rho * length / area)
def resistance_generator(rho, area, lengths, resfunc):
    """Generator function that creates resistance values of a wire of different lengths"""
    # Generate resistance for each length by applying the lambda function
    for length in lengths:
        yield resfunc(rho, length, area)

[kylemasc917]

I'm troubleshooting the changes above you suggested but it still gives the pylint error and while the algorithm works fine with these changes the unit test has broken down in a way that I'm unsure how to fix, and the resfunc is giving a pylint error in itself lowering the score further.

[laserlab]

I'm troubleshooting the changes above you suggested but it still gives the pylint error and while the algorithm works fine with these changes the unit test has broken down in a way that I'm unsure how to fix, and the resfunc is giving a pylint error in itself lowering the score further.

Thanks for checking. I guess I’m out of ideas then too, maybe using a lambda function here is just not useful and one should just use a real function in this case. Do you want to discuss your code in class? It would be a good example for how to use a function in a function.

[laserlab]

I'm troubleshooting the changes above you suggested but it still gives the pylint error and while the algorithm works fine with these changes the unit test has broken down in a way that I'm unsure how to fix, and the resfunc is giving a pylint error in itself lowering the score further.

I just checked your lint score now and it is up to 9.58/10

[laserlab]

Yes this gives me a 10/10:

…
    def resfunc(rho, length, area):
        return rho * length / area
    # Generate resistance for each length by applying the lambda function
    for length in lengths:
        yield resfunc(rho, length, area)

and with a direct generator it could be: yield (resfunc(rho, length, area) for length in lengths) but that’s probably not very readable

[kylemasc917]

I'm troubleshooting the changes above you suggested but it still gives the pylint error and while the algorithm works fine with these changes the unit test has broken down in a way that I'm unsure how to fix, and the resfunc is giving a pylint error in itself lowering the score further.

Thanks for checking. I guess I’m out of ideas then too, maybe using a lambda function here is just not useful and one should just use a real function in this case. Do you want to discuss your code in class? It would be a good example for how to use a function in a function.

Yes I wouldn't mind discussing it but what version would you prefer the current pull request version, the updated version with the resfunc and broken unit test, or something else?

[laserlab]

Would be best to discuss all versions