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Nichelle Segar
9,772 PointsCan I get an example of how to solve the challenge question?
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().
# 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.
3 Answers

Safery Hossain
3,484 PointsHere a for loop code i just made. Its pretty useless and there is a much 'efficient' way of doing it. Basically, the argument (num) is a list. The 'for loop' loops thought all the indexed item in the list and detects whether it holds the value '6'. It then returns True.
I think you can probably understand now how the exercise want you to design the code.
def find_six(num):
'''([list of int]) -> bool
Returns True iff it finds number 6.
'''
# Loops thought all the item in the list
for each_num in num:
# Returns True iff the item is equal to 6
if (each_num == 6):
return True
else:
pass

Sean T. Unwin
28,660 PointsWithout knowing what you have tried so far, I will give you an answer in pseudo-code:
# Define add_list function which takes one argument for a list
# Initialize variable for sum; set to 0
# Loop through each number in the list
# sum equals sum plus current number
# Return the sum

William Ruiz
10,027 PointsHere's my code, I hope it helps. I was definitely overthinking it. My biggest problem was converting the list to string, but remembering to use .format() helped.
def add_list(nums):
for items in nums:
items += items
return items
def summarize(nums):
return "The sum of {} is {}.".format(nums, add_list(nums))