--- a/mercurial/upgrade_utils/engine.py	Sun Feb 20 15:18:15 2022 -0700
+++ b/mercurial/upgrade_utils/engine.py	Thu Mar 03 17:34:00 2022 +0100
@@ -5,7 +5,6 @@
 # This software may be used and distributed according to the terms of the
 # GNU General Public License version 2 or any later version.
 
-from __future__ import absolute_import
 
 import errno
 import stat