diff --git a/tests/backends/tests.py b/tests/backends/tests.py
index 606441b4075..f09f9b81686 100644
--- a/tests/backends/tests.py
+++ b/tests/backends/tests.py
@@ -6,7 +6,6 @@ import copy
 import datetime
 from decimal import Decimal, Rounded
 import re
-import sys
 import threading
 import unittest
 import warnings