Quick Scanner for Kali

#A quick and dirty scanner for kali.
#Download the code
#Save it under the 'home' folder with Kali.
#Open under terminal with <python3 scanner.py "ipaddress">

#COPY THIS CODE:

#!/bin/python3

import sys #allows us to enter command line arguments among other things
import socket
from datetime import datetime
from termcolor import colored

#Define the target
if len(sys.argv) == 2:
    target = socket.gethostbyname(sys.argv[1]) #Translates a host name to IPV4
else:
    print("Invalid amount of arguments")
    print("Syntax: python3 scanner.py <ip>")
    sys.exit()

#Add a banner
print(colored("*" * 50, 'yellow'))
print(colored("Scanning target " + target,'cyan', attrs=['blink']))
print("Time Started " +str(datetime.now()))
print (colored("Scanner created by Conan Bradley",'blue'))
print(colored("*" * 50, 'yellow'))

try:
    for port in range(50,85):
        #for every part in the range of 0-200
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        # INET= IPV$ and STREAM = port. We are defining a connection
        socket.setdefaulttimeout(1) # times out the port if no response in 1 second
        result = s.connect_ex((target,port)) #storing the result of the connection -returns error indicator if there is an error on the conection, if all is good, returns 0.Target is from declared variable above and port is declared in try block
        print("Checking Port {}".format(port))
        if result == 0:
        # We were successful in connecting
            print(colored("Port {} is open".format(port)))
        s.close()
        #closes connection

except KeyboardInterrupt:
    print("\Exitiing Program")
    sys.exit()

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

except socket.error:
    print("Couldnt connect to server.")
    sys.exit()