Rpi to Rpi 2-way Client-Server Socket communication (python)

sudo pt-get install socket

TCP communication:
------ socket server -----

import socket

HOST = '' # Server IP or Hostname
PORT = 12345 # Pick an open Port (1000+ recommended), must match the client sport
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print 'Socket created'

#managing error exception
try:
    s.bind((HOST, PORT))
    except socket.error:
    print 'Bind failed '

    s.listen(5)
    print 'Socket awaiting messages'
    (conn, addr) = s.accept()
    print 'Connected'

# awaiting for message
while True:
    data = conn.recv(1024)
    print 'I sent a message back in response to: ' + data
    reply = ''

    # process your message
    if data == 'Hello':
        reply = 'Hi, back!'
        elif data == 'This is important':
        reply = 'OK, I have done the important thing you have asked me!'

    #and so on and on until...
    elif data == 'quit':
        conn.send('Terminating')
        break
    else:
        reply = 'Unknown command'

    # Sending reply
    conn.send(reply)
    conn.close() # Close connections

---- socket client ---------

import socket

HOST = '' # Enter IP or Hostname of your server
PORT = 12345 # Pick an open Port (1000+ recommended), must match the server port
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST,PORT))

#Lets loop awaiting for your input
while True:
    command = raw_input('Enter your command: ')
    s.send(command)
    reply = s.recv(1024)
        if reply == 'Terminate':
            break
        print reply

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