gistfile1.txt

import sys

import execnet

gw = execnet.makegateway("popen")

ch = gw.remote_exec("""
    while 1:
        data = channel.receive()
        if data:
            channel.send(data)
        else:
            break
""")
for i in range(1000):
    ch.send(1)
    ch.receive()

ch.send(None)