gistfile1.py

import os
import sys
import gevent

from gevent import socket
from gevent.server import StreamServer

acceptor = socket.socket()
acceptor.bind(('localhost', 4242))
acceptor.listen(10)

def handle(conn, addr):
    flo = conn.makefile()
    flo.write('Child %s echo> ' % childpid)
    flo.flush()

    message = flo.readline()
    flo.write(message)
    conn.close()
    print "Child %s echo'd: %r" % \
        (childpid, message.strip())

for i in xrange(3):
    pid = os.fork()

    if pid == 0:
        childpid = os.getpid()
        print "Child %s listening on localhost:4242" % childpid

        # Call event_reinit()
        gevent.reinit()

        try:
            server = StreamServer(acceptor, handle)
            server.serve_forever()

        except KeyboardInterrupt:
            sys.exit()

try:
    os.waitpid(-1, 0)
except KeyboardInterrupt:
    print "\nbailing"
    acceptor.close()
    sys.exit()