def neighbors_iter(self, n):
        try:
            return iter(self.adj[n])
        except KeyError:
            raise NetworkXError("The node %s is not in the graph."%(n,))
Backs up the DB to Amazon S3. The DB server runs pg_dump,
dataset/ETHPy150Open gkno/gkno_launcher/src/networkx/classes/graph.py/Graph.neighbors_iter--crossover with--dataset/ETHPy150Open duointeractive/django-fabtastic/fabtastic/fabric/commands/c_s3cmd.py/backup_db_to_s3