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Michael Rawlinson1,507 Points
Adding a list - python
How would I add all the numbers in a list, within a function
# add_list([1, 2, 3]) should return 6 def add_list(lists): for numb in lists: numb + numb + numb # summarize([1, 2, 3]) should return "The sum of [1, 2, 3] is 6." # Note: both functions will only take *one* argument each.
Chris FreemanTreehouse Moderator 68,064 Points
Hi Michael, you're very close. This missing part is to accumulate the total as the
for loop runs:
def add_list(lists): # initialize total to 0 total = 0 for numb in lists: # Add numb to total total += numb # Remember to return a value from the function return total
total += numb is equivalent to
total = total + numb