Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

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

Aaron Williams
Aaron Williams
1,702 Points

How do I do this? Python basics stage 5

I have no clue how to do this

# 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.

2 Answers

William Li
William Li
Courses Plus Student 26,865 Points

Here's a simple way to implement add_list

def add_list(li):
  result = 0
  for i in li:
    result += i
  return result

I'll leave it to you to figure out the summarize function, HINT:just make use of the add_list function.

the hints tell you what to do..

a function that accepts a list and returns a sum (this involves loop)

summarize accepts a list and returns in text (hint: use the previous function in this one to get the sum)