Python port scanner

scan.py

import socket
import subprocess
import sys

url = str(sys.argv[1])
remoteIp = socket.gethostbyname(url)

print "Scanning " + url + " (" + remoteIp + ")"
try:
    for port in range(1,5000):
        try:
            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            result = sock.connect_ex((url, port))
            if result == 0:
                print "Port %d open" % port
            else:
                print "Port %d closed" % port
            sock.close()
        except Exception, e:
            pass

except KeyboardInterrupt:
    print "You pressed Ctrl+C"
    sys.exit()

except socket.gaierror:
    print 'Hostname could not be resolved. Exiting'
    sys.exit()

except socket.error:
    print "Couldn't connect to server"
    sys.exit()

# usage: python scan.py <hostname> 
# warning! takes a f**king age