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andrew falcone
andrew falcone
8,651 Points


I am 98% that this code is correct (I think I may be missing an edge case), but am very frustrated that I am not receiving any sort of error message ("Bummer: Try again!"). This is absolutely ridiculous and completely unhelpful. The last time I was stuck, the error was the indentation because the treehouse workspace used a different number of spaces for indentation.

def combiner(a_list):
    numbers = 0
    strings = ""
    for x in a_list:
        if isinstance(x, float) or isinstance(x, int):
            numbers += x
        elif isinstance(x, str):
            strings += x
    return "{}{}".format(strings, numbers)

1 Answer

I copy/pasted your code and it passed the challenge.

andrew falcone
andrew falcone
8,651 Points

Interesting, I just went back and likewise pasted the code and it passed. It definitely was not passing earlier...