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 Python Basics (Retired) Putting the "Fun" Back in "Function" Functions

Temidayo Soneye
Temidayo Soneye
267 Points
Posted by Temidayo Soneye
Temidayo Soneye
267 Points

What does passed-in list mean? Does it mean user inputted values?

I am not sure what the term passed-list means.

2 Answers

Ricky Catron
Ricky Catron
13,023 Points
Ricky Catron
Ricky Catron
13,023 Points

I noticed you said you think you understand it but can you please post your progress so if someone else searches the problem on the forum they can find you solution?

My solution would be:

def add_list(passed_in_list):
    #passed_in_list is what the function takes as input
    #it is called like so add_list(list_to_be_passed_in)

    #each value in the list will be added to sum but at the beginning sum is zero
    sum = 0

    #this iterates through each item in the list and adds it to the sum
    for num in passed_in_list:
        sum = sum + num

    #this send the sum back to whatever called the function
    return sum

Edit: Added comments everywhere

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

"passed-in" just means that the variable will be provided from somewhere outside of your code.