environment/lib/python2.7/site-packages/IPython/zmq/zmqshell.py
def _exit_now_changed(self, name, old, new):
        """stop eventloop when exit_now fires"""
        if new:
            loop = ioloop.IOLoop.instance()
            loop.add_timeout(time.time()+0.1, loop.stop)
def _exit_now_changed(self, name, old, new):
        """stop eventloop when exit_now fires"""
        if new:
            loop = ioloop.IOLoop.instance()
            loop.add_timeout(time.time()+0.1, loop.stop)
stop eventloop when exit_now fires