diff --git a/mercurial/worker.py b/mercurial/worker.py
--- a/mercurial/worker.py
+++ b/mercurial/worker.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 errno, os, signal, sys, threading
-import util
+from __future__ import absolute_import
+
+import errno
+import os
+import signal
+import sys
+import threading
+
+from .i18n import _
+from . import util
 
 def countcpus():
     '''try to count the number of CPUs on the system'''