[Código] Scanner de Puertos [Python]

#!/usr/bin/env python

import socket
import sys
 
if len(sys.argv) != 4:
    print ("[+] Use: Port_Scanner.py <Target [IP]> <Port [START]> <Port [END]>")
    sys.exit(1)
 
IP = sys.argv[1]
Start = int(sys.argv[2])
End = int(sys.argv[3])
print '[+] Connecting to %s from %s to %s' % (IP, Start, End)
connection = socket.socket()
for i in range(Start, End+1):
    try:
        connection.connect( (IP, i) )
        print "Port: %s open" % i
    except:
        print "Port: %s close" % i
 
connection.close()

Port_Scanner.py 91.xxx.108.xxx 80 90

Port: 80 open
Port: 81 close
Port: 82 close
Port: 83 close
Port: 84 close
Port: 85 open
Port: 86 close
Port: 87 close
Port: 88 close
Port: 89 open
Port: 90 close