#!/usr/bin/env python
#_*_encoding:utf-8_*_
#Input your ip address and netmask to figure out your network .
#申明：此腳本為交互式，默認情況下請執行python network.py
from IPy import IP
input_IP = raw_input('請輸入ip地址:')
list1 = input_IP.split('.')
if len(list1) != 4:
 print "您輸入的ip地址不合法，請重新輸入！"
 exit()
for i in list1:
 if i.isdigit() == True and int(i) >=0 and int(i) <= 255:
 pass
 else:
 print "您輸入的ip地址不合法，請重新輸入！"
 exit()
input_Netmask = raw_input('請輸入子網掩碼:')
list2 = input_Netmask.split('.')
if len(list2) != 4:
 print "您輸入的子網掩碼不合法，請重新輸入!"
 exit()
for i in list2:
 if i.isdigit() == True and int(i) >=0 and int(i) <= 255:
 pass
 else:
 print "您輸入的子網掩碼不合法，請重新輸入!"
 exit()
print "您所在的網段為:%s" % (IP(input_IP).make_net(input_Netmask))