Scrabble word score

scrabble.py

import sys

# https://en.wikipedia.org/wiki/Scrabble_letter_distributions
SCORES = {
    'E' : 1,
    'A' : 1,
    'I' : 1,
    'O' : 1,
    'N' : 1,
    'R' : 1,
    'T' : 1,
    'L' : 1,
    'S' : 1,
    'U' : 1,

    'D' : 2,
    'G' : 2,

    'B' : 3,
    'C' : 3,
    'M' : 3,
    'P' : 3,

    'F' : 4,
    'H' : 4,
    'V' : 4,
    'W' : 4,
    'Y' : 4,

    'K' : 5,

    'J' : 8,
    'X' : 8,

    'Q' : 10,
    'Z' : 10,
}

if len(sys.argv) < 2:
    raise Exception("No word provided")

word = sys.argv[1]

total = 0
for letter in word.upper():
    score = SCORES.get(letter)
    if not score:
        raise Exception("Unknown letter %s" % (letter))

    total += score

print total

python scrabble.py hello