IP and port scanner in python

[gorski]

#!/usr/bin/env python

"""
Scanner pentru orice cu o adresa IP si care nu are parola && user
(sper sa-i fie de folos cuiva)
"""

import sys
import socket
import struct

raw_ip = raw_input("Enter the starting IP address: ")
port = raw_input("Enter the port you want to scan: ")
ip_number = raw_input("Enter the numer of IPs you want to scan: ")

print "Working..."

ip2int = lambda ipstr: struct.unpack('!I', socket.inet_aton(ipstr))[0]
int2ip = lambda n: socket.inet_ntoa(struct.pack('!I', n))

ip_number = int(ip_number)
inted_ip = ip2int(raw_ip)

i = 1

while i <= ip_number:
	if i == ip_number:
		print 'Job Done.'
	try:
		sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
		result = sock.connect_ex((raw_ip, int(port)))
		if result == 0:
			f = open('list.txt', 'w')
			f.write(int2ip(inted_ip) + ':' + port + '\n')
		else:
			print "Nothing found."
		inted_ip+=i
		sock.close()
	except KeyboardInterrupt:
		print "Exiting..."
		sys.exit()
	except socket.error:
		print "Could not connect to the server. Exiting..."
		sys.exit()
	i += 1;