diff -r 55d132525155 -r 642e31cb55f0 mercurial/loggingutil.py
--- a/mercurial/loggingutil.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/mercurial/loggingutil.py	Mon Feb 21 13:08:28 2022 -0700
@@ -73,7 +73,7 @@
     return b'*' in tracked or event in tracked
 
 
-class filelogger(object):
+class filelogger:
     """Basic logger backed by physical file with optional rotation"""
 
     def __init__(self, vfs, name, tracked, maxfiles=0, maxsize=0):
@@ -104,7 +104,7 @@
             )
 
 
-class fileobjectlogger(object):
+class fileobjectlogger:
     """Basic logger backed by file-like object"""
 
     def __init__(self, fp, tracked):
@@ -129,7 +129,7 @@
             )
 
 
-class proxylogger(object):
+class proxylogger:
     """Forward log events to another logger to be set later"""
 
     def __init__(self):