Digital Root without loops Python

Question

def digit_sum(n):
    \'\'\'(int)->number
    Returns the sum of all the digits in the given integer, n\'\'\'
    if n<10:
        return n
    return n%10 + digit         


        

Answer 1

please try the following code:

def dgtl_rt(n):
   return n%9 or n and 9
print(dgtl_rt(123))