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

Jason Thiele
Jason Thiele
671 Points

Cant figure out whats wrong here..

when i run my code i get the message " Bummer! add_list didn't return the right answer. Got 1 when adding [1, 2, 3], expected 6". Im not sure why my function is not adding up my list items correctly.


# add_list([1, 2, 3]) should return 6
# summarize([1, 2, 3]) should return "The sum of [1, 2, 3] is 6."
# Note: both functions will only take *one* argument each.

a_list = (1,2,3)
def add_list(a_list):
  total = 0
  for item in a_list:
    total += item
    return total 

1 Answer

Ken Alger
Ken Alger
Treehouse Teacher


Welcome to Treehouse!

Unindent your return total to the same indentation as your for statement.

Happy coding,