#!/usr/bin/python
# -*- encoding: utf-8 -*-

import sys,os

FILE = "Vagrantfile"

if not os.path.exists(FILE):
    print(FILE + ":file not found.")
    sys.exit(1)

f = open(FILE)

file_tmp = []
for line in f:
    file_tmp.append(line)

for l in file_tmp:
    if 'config.vm.network :private_network' in l: