Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python

Posted by Misha Morse
Misha Morse
3,711 Points

Haaaaalp

This function runs just fine on pycharm and in workspaces so I feel like I'm expected to do something differently. Any suggestions are appreciated!

instances.py 
def combiner(*args):
    strings = []
    numbers = []

    for arg in args:
        if isinstance(arg, str):
            strings.append(arg)
        elif isinstance(arg, (int, float)):
            numbers.append(arg)

    numbers = sum(numbers)
    numbers = str(numbers)
    strings = "".join(strings)
    result = strings + numbers
    return result

4 Answers

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

The instructions said that the function "takes a single argument, which will be a list". But the "splat" operator ("*") is for when a function takes several arguments that you want to convert into a list.

Misha Morse
Misha Morse
3,711 Points
Misha Morse
Misha Morse
3,711 Points

Ah, I see. How do I specify a list as my argument in my function definition?

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

Just don't put the asterisk in front !

Misha Morse
Misha Morse
3,711 Points
Misha Morse
Misha Morse
3,711 Points

First off, thankyou so much for your help. This is what I'm trying now and it gives me TypeError: 'function' object is not subscriptable… :/

def combiner(args): strings = [] numbers = []

for item in args:
    if isinstance(item, str):
        strings.append(item)
    elif isinstance(item, (int, float)):
        numbers.append(item)

numbers = sum(numbers)
numbers = str(numbers)
strings = "".join(strings)
result = strings + numbers
return result

print(combiner["Misha", 6.9, "Rocks", 5.4, "Hard", 55])

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

For the challenge, you only need to define the function, you won't need to call it yourself.
Leave out the "print" line at the end and you should pass.

Misha Morse
Misha Morse
3,711 Points
Misha Morse
Misha Morse
3,711 Points

It condensed my first three line of codes into one line when I submitted it oh here. It doesnt really look like that

Steven Parker
Steven Parker
231,236 Points
Steven Parker
Steven Parker
231,236 Points

When posting code, use Markdown formatting to preserve the code's appearance.