import sys

dict={'0':'BNZ', '1':'AMW', '2':'KLY', '3':'JVX', '4':'HU', '5':'GT', '6':'FS', '7':'ER', '8':'DOQ', '9':'CIP'}

def compute(var):
    sum = 0
    result = list()
    var=str(var)
    for i in range(8):
        sum += (int(var[i]) * (8 - i))
    sum += int(var[8])
    r = str(10 - (sum % 10))
    result.append(dict.get(r))
    print(' '.join(result))

for line in sys.stdin:
    x = [int(i) for i in line.split()]
    for num in x:
        compute(num)

測資結果RE 顯示print那邊應該要字串str的物件，但卻是None type 想請問怎麼解決？

r = str(10 - (sum % 10))
result.append(dict.get(r))

你這樣寫，有可能  r = '10'

key 裡面沒有 '10'

哇！犯蠢了，感謝提醒～