# Digit_sum

#1

Help I am stuck and it keeps telling me:

function has no positive integer and "int objetc is not iterable"

#2

the url is the same for everyone, it checks for user to load your personal code

So the indent will show

#3

``````n=int(input('input a number'))
def digit_sum(n):
result=0
n=int(str(n))
for i in n:
i +=int(i)
return (sum(result))``````

#4

this line:

``n=int(str(n))``

you cast `n` to a string to cast it back to a integer. Could you explain why?

here:

``i +=int(i)``

you are adding `int(i)` to the for loop iterator, why? You defined a beautiful variable called total, which i assume has as purpose to store the total?

don't use `sum()`, it is for lists. You don't have a list.

#5

n=int(str(n)) because the hint reads "One way might be to convert the integer to a string with str(), divide it up, and turn the substrings back into integers with int() to do the addition."

I dont have a variable called total. I only have a variable called result so you have confused me

#6

you do the sub-string conversion in your for loop:

``i +=int(i)``

to get the result.

but here:

``n=int(str(n))``

you are converting the whole string back to an integer after casting it to a string, not the sub-string.

That is indeed a mistake of me, that should be result:
`
You defined a beautiful variable called result, which i assume has as purpose to store the result?

#7

am stuck again
help

#8

you still add `i` to `i` instead of `result`, result should have the sum of the numbers. adding to the iterator doesn't make much sense since its get overwritten every iteration of the loop

#9

my mistake
got it now
i changed to
result =result+i

Thanks alooooot
much appreciated

#10