--- a/mercurial/keepalive.py	Sun Feb 20 15:18:15 2022 -0700
+++ b/mercurial/keepalive.py	Thu Mar 03 17:34:00 2022 +0100
@@ -82,7 +82,6 @@
 
 # $Id: keepalive.py,v 1.14 2006/04/04 21:00:32 mstenner Exp $
 
-from __future__ import absolute_import, print_function
 
 import collections
 import errno