Issue #12400: Add missing import (os) to test_kqueue
diff --git a/Lib/test/test_kqueue.py b/Lib/test/test_kqueue.py
index 5c9f7c9..4e93013 100644
--- a/Lib/test/test_kqueue.py
+++ b/Lib/test/test_kqueue.py
@@ -1,11 +1,12 @@
 """
 Tests for kqueue wrapper.
 """
-import socket
 import errno
-import time
+import os
 import select
+import socket
 import sys
+import time
 import unittest
 
 from test import support