client_fileio_TCP.py

#The client program sets up its socket differently from the way a server does. Instead of binding to a port and listening, it uses connect() to attach #the socket directly to the remote address.

import socket
import sys

# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Connect the socket to the port where the server is listening
server_address = ('127.0.0.1', 10000)
print >>sys.stderr, 'connecting to %s port %s' % server_address
sock.connect(server_address)
foc = open("client.txt", "r")
#After the connection is established, data can be sent through the socket with sendall() and received with recv(), just as in the server.

try:
    # Look for the response
    while True:
        bufc = foc.read(10)
        if bufc:
            sock.sendall(bufc)
        else:
            print >>sys.stderr, 'all contents read, no more data in file'
            break


finally:
    print >>sys.stderr, 'closing socket'
    sock.close()
    foc.close()

#When the entire message is sent and a copy received, the socket is closed to free up the port.