diff --git a/irods/session.py b/irods/session.py
index 208ff3d0..fb2aa5f3 100644
--- a/irods/session.py
+++ b/irods/session.py
@@ -6,7 +6,6 @@
 import json
 import logging
 import os
-from six import raise_from
 import threading
 import weakref
 from irods.query import Query