diff -r 55d132525155 -r 642e31cb55f0 mercurial/obsutil.py
--- a/mercurial/obsutil.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/mercurial/obsutil.py	Mon Feb 21 13:08:28 2022 -0700
@@ -56,7 +56,7 @@
 usingsha256 = 2
 
 
-class marker(object):
+class marker:
     """Wrap obsolete marker raw data"""
 
     def __init__(self, repo, data):