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

Foday Conteh
Foday Conteh
279 Points

Challenge Task 1 of 2: functions.py

Challenge Task 1 of 2

Make a function named add_list that takes a list. The function should then add all of the items in the list together and return the total. Assume the list contains only numbers. You'll probably want to use a for loop. You will not need to use input().

Will need some help with this. Please.

# 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(6):
total = (0)
  for total in add_list:
  total = total + add_list

1 Answer

andi mitre
andi mitre
Treehouse Guest Teacher

Hey Foday,

Pass an array to your function add_list. Then iterate through the array not the function name and keep a count for the total throughout each iteration which you were on the right track. Hope this helps!

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


hey andi you rock, thanks mate!