--- a/mercurial/setdiscovery.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/mercurial/setdiscovery.py	Mon Feb 21 13:08:28 2022 -0700
@@ -106,7 +106,7 @@
     return set(sample[:desiredlen])
 
 
-class partialdiscovery(object):
+class partialdiscovery:
     """an object representing ongoing discovery
 
     Feed with data from the remote repository, this object keep track of the