Python - 素数判定！

#! /usr/local/bin/python3.6
"""
Prime number judgement.
"""
import math
import sys
import traceback


class PrimeNumber:
    def is_prime(self, n):
        try:
            res = any(n % i == 0 for i in range(2, int(math.sqrt(n)) + 1))
            return not(res)
        except Exception as e:
            raise


if __name__ == '__main__':
    if len(sys.argv) < 2:
        print("USAGE: ./prime_number.py N")
        sys.exit(0)
    try:
        n = int(sys.argv[1])
        if n < 2:
            print("Should be integers greater than 1.")
            sys.exit(0)
        obj = PrimeNumber()
        judge = "" if obj.is_prime(n) else "NOT "
        print("{} : {}PRIME NUMBER".format(n, judge))
    except Exception as e:
        traceback.print_exc()
        sys.exit(1)

$ chmod +x prime_number.py

$ ./prime_number.py 12345678923
12345678923 : PRIME NUMBER

$ ./prime_number.py 12345678924
12345678924 : NOT PRIME NUMBER