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

Putting the "Fun" Back in "Function". Still don't get it done.

Don't get what am I doing wrong here. I have watched video several times and don't see what should I do...

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.
list = ([1, 2, 3])

def add_list(list):
  total = 0
  for i in list:
    total += i
  return total

def summarize(list):
  total = add_list(list)
return ("The sum of [1, 2, 3] is {}.".format(str(list), total + "."))

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,868 Points

Hi, Raimond Põldaru , I guess you are a bit caught up by what the example test code is saying.

summarize([1, 2, 3]) should return "The sum of [1, 2, 3] is 6."

No, you shouldn't have handcoded [1, 2, 3] into your return String, because imagine what if the argument pass to the summarize function isn't [1, 2, 3], then your output String doesn't make sense. You should use String interpolation to do the job.

also, make use of the add_list function you previously defined will make this problem easier.

def summarize(list):
  return "The sum of {} is {}.".format(list, add_list(list))

A word of friendly advice. Don't use word like list, sum as function parameter name, as they shared the same name as Python's built-in functions. In some rare cases, doing so can cause conflict in your code that is very hard to debug.