a simple port scanner script

pscanner.py

#!/usr/bin/python

from socket import *
import sys, time
from datetime import datetime

host = ''
max_port = 5000
min_port = 1

def scan_host(host, port, r_code = 1):
	try:
		s = socket(AF_INET, SOCK_STREAM) # open a socket for each port
		code = s.connect_ex((host, port))
		if code == 0:
			# use s.send() here to send your shellcode through the host and open port and control it using netcat or your listener
			r_code = code
		s.close()
	except Exception as e:
		pass # continue execution
	return r_code

try:
	host = raw_input("[*] Enter Target Host Address: ")
except KeyboardInterrupt:
	print "\n\n[*] User Requested An Interrupt"
	print "[*] Application Shutting Down"
	sys.exit(1)

hostip = gethostbyname(host)
print "\n[*] Host: %s IP: %s" %(host, hostip)
print "[*] Scanning Started At %s...\n" %(time.strftime("%H:%M:%S"))
start_time = datetime.now()

for port in range(min_port, max_port):
	try:
		responce = scan_host(host, port)

		if responce == 0:
			print "[*] Port %d: Open" %(port)
	except Exception as e:
		pass

stop_time = datetime.now()
total_time_duration = stop_time - start_time
print "\n[*] Scanning Finished At %s ... " %(time.strftime("%H:%M:%S"))
print "[*] Scanning Duration: %s ..." %(total_time_duration)
print "[*] Have A nIcE cRy!!!"