import socket
import sys

import argparse

host = 'localhost'

def echo_client(port):
    """ A simple echo client """
    # Create a TCP/IP socket
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    # Connect the socket to the server
    server_address = (host, port)
    print("Connecting to %s port %s" % server_address)
    sock.connect(server_address)
    
    # Send data
    try:
        # Send data
        message = "Test message. This will be echoed"
        print("Sending %s" % message)
        sock.sendall(message.encode('utf-8'))
        # Look for the response
        amount_received = 0
        amount_expected = len(message)
        while amount_received < amount_expected:
            data = sock.recv(16)
            amount_received += len(data)
            print ("Received: %s" % data)
    except socket.error as e:
        print ("Socket error: %s" %str(e))
    except Exception as e:
        print ("Other exception: %s" %str(e))
    finally:
        print ("Closing connection to the server")
        sock.close()


if __name__ == '__main__':
#    parser = argparse.ArgumentParser(description='Socket Server Example')
#    parser.add_argument('--port', action="store", dest="port", type=int, required=True)
#    given_args = parser.parse_args()
#    port = given_args.port
#    echo_client(port)
     echo_client(1500)

#    port = int(input('insert port number : '))
#    echo_client(port)