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Bruce McMinn
Bruce McMinn
10,030 Points

Works locally and in workspaces but not in interpreter for code challenge combiner

This works locally and in workspaces but not in the challenge. I have put it into the interpreter in a few different ways, like without the list etc. This is the only Treehouse code challenge I've found that was this open ended and didn't work. Kind of a bummer. Locally and in the workspace I get stringalert15.2 returned. Also, any idea why I have to use '' around inputs in Terminal?

list = ["string", 10, "alert", 5.2]

def combiner(list):

    word_list = []
    number_list = []

    for word in list:
        if isinstance(word, str):
            word_string = "".join(word_list)

    for number in list:
        if isinstance(number, (int, float)):

            number_sum = sum(number_list)
            number_str = str(number_sum)

    big_string = word_string + number_str


Bruce McMinn
Bruce McMinn
10,030 Points

So I had to return the string not print it. And then not provide the list and not call it. Then it works!

Thanks for the To-Do list of things to do and not include. I also printed, called, etc.

1 Answer

Steven Parker
Steven Parker
229,921 Points

As you discovered, challenges often have specific requirements that may not be obvious when testing in an external REPL or a workspace.

For best results with challenges, always read instructions carefully, and do only what they ask for. Sometimes students do a few "extra" things and that can confuse the validation as well.