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

Glen Winters
Glen Winters
3,011 Points
Posted by Glen Winters
Glen Winters
3,011 Points

Bugged challenge task 2 of 2 for Putting the "Fun" Back in "Function"

I'm getting an AttributeError on the lower() function. That's not in my code, so perhaps it's a bug?

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(l):
  sum = 0
  for i in l:
    sum += i
  return sum

def summarize(l):
  sum = add_list(l)
  print("The sum of {} is {}.".format(str(l), sum))

2 Answers

Juan Martin
Juan Martin
14,335 Points
Juan Martin
Juan Martin
14,335 Points

Hello my friend!

You did a great job! The mistake here is that you have to "return" a string, not "print" a string. It should be like this:

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

Also, as an advice, always use more explicit variables (not single character variables) in order to make it easier for someone else to read your code (Fragments taken from the Zen of Python: Explicit is better than implicit, Readability counts).

Hope this helps :)