#!/usr/bin/env python

import sys
from divisors import is_prime

with open("data.txt", "rb") as f_in, open("results.txt", "wb") as f_out:
    for line in f_in:
        i = int(line.strip())
        try:
            f_out.write("is_prime({}) == {}\n".format(i, is_prime(i)))
        except ValueError as err:
            print "ERR: non e' possibile verificare se {} e' primo: {}".format(i, err)
            sys.exit(1)