environment/lib/python2.7/site-packages/IPython/zmq/log.py
def root_topic(self):
        """this is a property, in case the handler is created
        before the engine gets registered with an id"""
        if isinstance(getattr(self.engine, 'id', None), int):
            return "engine.%i"%self.engine.id
        else:
            return "engine"
def root_topic(self):
        """this is a property, in case the handler is created
        before the engine gets registered with an id"""
        if isinstance(getattr(self.engine, 'id', None), int):
            return "engine.%i"%self.engine.id
        else:
            return "engine"
this is a property, in case the handler is created
        before the engine gets registered with an id