def nodes_iter(self, data=False):
        if data:
            return iter(self.node.items())
        return iter(self.node)
Overwrite tornado.web.RequestHandler prepare.
dataset/ETHPy150Open gkno/gkno_launcher/src/networkx/classes/graph.py/Graph.nodes_iter--crossover with--dataset/ETHPy150Open MitchellChu/torndsession/torndsession/sessionhandler.py/SessionBaseHandler.prepare