diff --git a/mercurial/config.py b/mercurial/config.py
--- a/mercurial/config.py
+++ b/mercurial/config.py
@@ -5,9 +5,16 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-from i18n import _
-import error, util
-import os, errno
+from __future__ import absolute_import
+
+import errno
+import os
+
+from .i18n import _
+from . import (
+    error,
+    util,
+)
 
 class config(object):
     def __init__(self, data=None, includepaths=[]):