1#!/usr/bin/env python
2"""Adapted echo.py to put the send in the event loop using a ZMQStream.
3"""
4
5import zmq
6from zmq.eventloop import ioloop, zmqstream
7
8loop = ioloop.IOLoop.instance()
9
10ctx = zmq.Context()
11s = ctx.socket(zmq.ROUTER)
12s.bind('tcp://127.0.0.1:5555')
13stream = zmqstream.ZMQStream(s, loop)
14
15
16def echo(msg):
17    print(" ".join(map(repr, msg)))
18    stream.send_multipart(msg)
19
20
21stream.on_recv(echo)
22
23loop.start()
24