not an issue, you need something more efficient.

Note: when you see more then hundreds of completions in your language, there are little chances that there is an issue in a kata (if none is already raised in the discourse, I mean)

I'm getting timeout every time using Python3.6 with this code

def parts_sums(ls):
  return [sum(ls[i:]) for i in range(len(ls) + 1)]

Not an issue. Your solution is inefficient.

TKS!

You need to return the number, not the whole sentence.