diff -r 55d132525155 -r 642e31cb55f0 mercurial/namespaces.py
--- a/mercurial/namespaces.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/mercurial/namespaces.py	Mon Feb 21 13:08:28 2022 -0700
@@ -16,7 +16,7 @@
         return [val]
 
 
-class namespaces(object):
+class namespaces:
     """provides an interface to register and operate on multiple namespaces. See
     the namespace class below for details on the namespace object.
 
@@ -124,7 +124,7 @@
         raise KeyError(_(b'no such name: %s') % name)
 
 
-class namespace(object):
+class namespace:
     """provides an interface to a namespace
 
     Namespaces are basically generic many-to-many mapping between some