diff -r 55d132525155 -r 642e31cb55f0 mercurial/lock.py
--- a/mercurial/lock.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/mercurial/lock.py	Mon Feb 21 13:08:28 2022 -0700
@@ -173,7 +173,7 @@
     return l
 
 
-class lock(object):
+class lock:
     """An advisory lock held by one process to control access to a set
     of files.  Non-cooperating processes or incorrectly written scripts
     can ignore Mercurial's locking scheme and stomp all over the