environment/lib/python2.7/site-packages/IPython/parallel/controller/scheduler.py
def _register_engine(self, uid):
        """New engine with ident `uid` became available."""
        # head of the line:
        self.targets.insert(0,uid)
        self.loads.insert(0,0)

        # initialize sets
        self.completed[uid] = set()
        self.failed[uid] = set()
        self.pending[uid] = {}

        # rescan the graph:
        self.update_graph(None)
def _register_engine(self, uid):
        """New engine with ident `uid` became available."""
        # head of the line:
        self.targets.insert(0,uid)
        self.loads.insert(0,0)

        # initialize sets
        self.completed[uid] = set()
        self.failed[uid] = set()
        self.pending[uid] = {}

        # rescan the graph:
        self.update_graph(None)
New engine with ident `uid` became available.