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Python

Posted by Katherina Kallis
Katherina Kallis
3,385 Points

Treehouse: Didn't get the expected output --> But I did! *using instances

Task: Create a function named combiner that takes a single argument, which will be a list made up of strings and numbers.

Return a single string that is a combination of all of the strings in the list and then the sum of all of the numbers. For example, with the input ["apple", 5.2, "dog", 8], combiner would return "appledog13.2". Be sure to use isinstance to solve this as I might try to trick you.

Error: Didn't get the expected output!

I ran my code several times with different objects and I do get the expected result as asked in the task. I don't understand why the error is thrown.

instances.py 
def combiner(mixedlist):
    x = ""
    y = 0
    for rec in mixedlist:
        if isinstance(rec,str):
            x += rec
        elif isinstance(rec, int):
            y += rec
    x += str(y)
    return x
Katherina Kallis
Katherina Kallis
3,385 Points

I tried, for instance, with this list

a = [10,"bamboo", "ohoh",105, 26, "bo", 9, "last"]

and the result was

treehouse:~/workspace$ python notitle.py
bambooohohbolast150

1 Answer

Spencer Hurrle
Spencer Hurrle
3,128 Points
Spencer Hurrle
Spencer Hurrle
3,128 Points

Kenneth added strings, ints, and floats in the list. You're only catching strings and ints. Looks like you just need to catch those floats