LuckyNameNumber.py

def letterToNumber(letter):
    if letter.isalpha():
        letter = letter.upper()
        return 1 + ord (letter) - ord ('A')
    else:
        return int (letter)

def sumDigits (s):
    sum = 0
    for x in str(s):
        sum += letterToNumber (x)

    if sum > 9:
        return sumDigits (sum) # recursive function call

    return sum

def main ():
    first_name = input("Enter first name: ")
    surname = input("Enter surname: ")
    sum_first = sumDigits (first_name)
    print (first_name + ": " + str (sum_first))
    sum_second = sumDigits (surname)
    print (surname + ": " + str (sum_second))
    print ("Lucky Name Number is: " + str (sumDigits (sum_first + sum_second)))

main()