environment/lib/python2.7/site-packages/IPython/zmq/ipkernel.py
def _eventloop_changed(self, name, old, new):
        """schedule call to eventloop from IOLoop"""
        loop = ioloop.IOLoop.instance()
        loop.add_timeout(time.time()+0.1, self.enter_eventloop)
def _eventloop_changed(self, name, old, new):
        """schedule call to eventloop from IOLoop"""
        loop = ioloop.IOLoop.instance()
        loop.add_timeout(time.time()+0.1, self.enter_eventloop)
schedule call to eventloop from IOLoop