Interprocess communication in Python

The multiprocessing library provides listeners and clients that wrap sockets and allow you to pass arbitrary python objects.

Your server could listen to receive python objects:

from multiprocessing.connection import Listeneraddress = ('localhost', 6000)     # family is deduced to be 'AF_INET'listener = Listener(address, authkey='secret password')conn = listener.accept()print 'connection accepted from', listener.last_acceptedwhile True:    msg = conn.recv()    # do something with msg    if msg == 'close':        conn.close()        breaklistener.close()

Your client could send commands as objects:

from multiprocessing.connection import Clientaddress = ('localhost', 6000)conn = Client(address, authkey='secret password')conn.send('close')# can also send arbitrary objects:# conn.send(['a', 2.5, None, int, sum])conn.close()

Nah, zeromq is the way to go. Delicious, isn't it?

import argparseimport zmqparser = argparse.ArgumentParser(description='zeromq server/client')parser.add_argument('--bar')args = parser.parse_args()if args.bar:    # client    context = zmq.Context()    socket = context.socket(zmq.REQ)    socket.connect('tcp://127.0.0.1:5555')    socket.send(args.bar)    msg = socket.recv()    print msgelse:    # server    context = zmq.Context()    socket = context.socket(zmq.REP)    socket.bind('tcp://127.0.0.1:5555')    while True:        msg = socket.recv()        if msg == 'zeromq':            socket.send('ah ha!')        else:            socket.send('...nah')

From my experience, rpyc is by far the simplest and most elegant way to go about it.

(I know this is an old question, but I've just stumbled upon it..)