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DANIEL RILEY
423 PointsI'm getting the right return but i'm still not passing correctly... how do i convert the list to a string using my code?
x = [1, 2, 3]
def add_list(x):
for num in x:
sum_of_list = sum(x)
return sum_of_list
def summarize(x):
return "The sum of {} is {}".format(x, sum(x))
Kenneth Love
Treehouse Guest TeacherWhy are you suming the list for every item in the list? sum() adds the contents of a list together, so you don't need to do it repeatedly, just once.
1 Answer
Nazmus Sarwar
5,625 PointsEverything in python is an object, and thus you can use this special method for strings to join a list into a string.
",".join(x)
So if for say
x = [1, 2, 3, 4, 5]
It would join every element by a comma. However, this method only naturally joins strings together, not integers. So you would need to use list comprehensions.
return "The sum of {} is {}".format(", ".join(str(num) for num in x), sum(x))
inside of your summarize function.
DANIEL RILEY
423 PointsThank you I believe I understand better now.
DANIEL RILEY
423 PointsDANIEL RILEY
423 Points**** UPDATED
def add_list(x): for num in x: sum_of_list = sum(x) return sum_of_list
def summarize(x): y = str(x) return "The sum of {0} is {1}".format(y, add_list(x))