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

Yu Cao
Yu Cao
2,414 Points

def add_list(lists): print (sum(lists)) why is this code not accepted? I've tested it in python 3.4

def add_list(lists): print (sum(lists))

why is this code not accepted? I've tested it in python 3.4

functions.py
# 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.

def add_list(lists):
        print (sum(lists))

2 Answers

luke hammer
luke hammer
25,513 Points

I believe this is the same problem you had with the other problem.

Print is not equal to return.

your last line should look more like.

def add_list(lists):
        answer =  (sum(lists))
        return answer

print add_list([1,2,3,4])
Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points

The hints say: add_list([1, 2, 3]) should return 6.

Your function needs to return a value.

def add_list(lists):
        return sum(lists)