diff -r 5aa2afb4f81a -r a327a24acfea tests/generate-working-copy-states.py
--- a/tests/generate-working-copy-states.py	Fri Nov 13 14:35:36 2015 +0800
+++ b/tests/generate-working-copy-states.py	Sun Dec 06 22:23:37 2015 -0800
@@ -29,8 +29,10 @@
 # $ hg forget *_*_*-untracked
 # $ rm *_*_missing-*
 
+from __future__ import absolute_import
+
+import os
 import sys
-import os
 
 # Generates pairs of (filename, contents), where 'contents' is a list
 # describing the file's content at each revision (or in the working copy).