# vim:fileencoding=utf-8
from __future__ import print_function

import sys
import time

import zmq


BIND_ADDR = 'tcp://*:5555'


def main():
    context = zmq.Context(1)
    responder = context.socket(zmq.REP)

    print('Binding server to {}'.format(BIND_ADDR))
    responder.bind(BIND_ADDR)

    print('Starting loop.')
    try:
        while True:
            responder.recv()
            print('Received Hello')
            time.sleep(0.25)
            responder.send("World")

    except KeyboardInterrupt:
        responder.close()
        context.term()
        return 0


if __name__ == '__main__':
    sys.exit(main())