checking the given number is Lucky or Not

import math

def isLucky(n):

ar = [0] * 10

while (n > 0):

digit = math.floor(n % 10)

if (ar[digit]):

return 0

ar[digit] = 1

n = n / 10

return 1

arr = [1291, 897, 4566, 1232, 80, 700]

n = len(arr)

for i in range(0, n):

k = arr[i]

if(isLucky(k)):

print(k, " is Lucky ")

else:

print(k, " is not Lucky ")