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

Problem with my Python code to make functions.

My code doesn't pass the second part of the quiz. Can anyone help?

Here's the question: Challenge Task 2 of 2

Now, make a function named summarize that also takes a list. It should return the string "The sum of X is Y.", replacing "X" with the string version of the list and "Y" with the sum total of the list.

Here's my code - the first part for 'def add_list(my_list):' works to add all numbers in my_list. I can't figure out how to make the 'summarize' function work.

def add_list(my_list):
    sum = 0 
    for num in my_list:
        sum += num 
    return sum

def summarize(my_list)
   return ("The sum of {} is {}.".format(' '.join(my_list),add_list(my_list)))

[MOD: added ```python formatting -cf]

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,404 Points

The parameter my_list does not have to be joined before used in formatting the string. Try:

   return ("The sum of {} is {}.".format(my_list, add_list(my_list)))