environment/lib/python2.7/site-packages/IPython/parallel/controller/dictdb.py
def get_history(self):
        """get all msg_ids, ordered by time submitted."""
        msg_ids = self._records.keys()
        return sorted(msg_ids, key=lambda m: self._records[m]['submitted'])
def get_history(self):
        """get all msg_ids, ordered by time submitted."""
        msg_ids = self._records.keys()
        return sorted(msg_ids, key=lambda m: self._records[m]['submitted'])
get all msg_ids, ordered by time submitted.