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

Viktoriya Shirochenkova
Viktoriya Shirochenkova
265 Points

How do I replace an X with a string version of a list? return "The sum of " + str.join(list) + " is " + add_list(list

I have the following code and it keeps giving me an error message that I am not using str correctly.

return "The sum of " + str.join(list) + " is " + add_list(list) + "."

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(list):
  sum = 0
  for item in list:
    sum = sum + item
  return sum

def summarize(list):
  return "The sum of " + str.join(list) + " is " + add_list(list) + "."

1 Answer

Hi Viktoriya

if you just pass the list and the call to add_list function as a string the challenge will work.

# 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(list):
  sum = 0
  for item in list:
    sum = sum + item
  return sum

def summarize(list):
  return "The sum of " + str(list) + " is " + str(add_list(list)) + "."