[FIXED (not a bug)] Bug on pyzmq when trying to delete context

zmqbug.py

#!/usr/bin/env python
# coding: utf-8
# This is not a bug. Just need to set linger: socket.linger = 0
# You need to run it without a socket listening on *:5555 to reproduce the bug
# Maybe it's related to https://github.com/zeromq/pyzmq/issues/211 and https://github.com/zeromq/pyzmq/issues/212

import zmq


def zmq_bug(host_port, data, timeout=1):
    print 'Creating context and socket...'
    context = zmq.Context()
    connection_string = 'tcp://{}:{}'.format(*host_port)
    socket = context.socket(zmq.REQ)

    print 'Connecting...'
    socket.connect(connection_string)
    socket.linger = 0

    print 'Sending JSON...'
    socket.send_json({'command': 'add pipeline', 'data': data})

    print 'Polling...'
    if socket.poll(timeout):
        print 'Received something!'
        result = socket.recv()
        print result
    else:
        print 'Received nothing.'
        result = None

    print 'Deleting socket object...'
    del socket

    print 'Terminating context...'
    context.term()

    print 'Returning result...'
    return result

print zmq_bug(('localhost', 5555), {'spam': 'eggs'})