def client_start(self, str port, str host, list msg):
    sock = socket.socket(socket.AF_INET, 
                         socket.SOCK_DGRAM)
    sock.sendto(msg, (host, port))

import socket, pickle
HOST = 'localhost'
PORT = 50007
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
arr = ([1,2,3,4,5,6],[1,2,3,4,5,6])
data_string = pickle.dumps(arr)
s.send(data_string)
data = s.recv(4096)
data_arr = pickle.loads(data)
s.close()
print 'Received', repr(data_arr)

import socket
HOST = 'localhost'
PORT = 50007
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)
conn, addr = s.accept()
print 'Connected by', addr
while 1:
    data = conn.recv(4096)
    if not data: break
    conn.send(data)
conn.close()