--- a/tests/test-propertycache.py	Mon Apr 04 03:14:16 2016 +0300
+++ b/tests/test-propertycache.py	Mon Apr 04 03:16:18 2016 +0300
@@ -4,7 +4,9 @@
 property cache of both localrepo and repoview to prevent
 regression."""
 
-import os, subprocess
+from __future__ import absolute_import
+import os
+import subprocess
 import mercurial.localrepo
 import mercurial.repoview
 import mercurial.util