diff -r 55d132525155 -r 642e31cb55f0 contrib/testparseutil.py
--- a/contrib/testparseutil.py	Mon Feb 21 13:03:43 2022 -0700
+++ b/contrib/testparseutil.py	Mon Feb 21 13:08:28 2022 -0700
@@ -79,7 +79,7 @@
 ####################
 
 
-class embeddedmatcher(object):  # pytype: disable=ignored-metaclass
+class embeddedmatcher:  # pytype: disable=ignored-metaclass
     """Base class to detect embedded code fragments in *.t test script"""
 
     __metaclass__ = abc.ABCMeta
@@ -156,7 +156,7 @@
     :ends: line number (1-origin), at which embedded code ends (exclusive)
     :code: extracted embedded code, which is single-stringified
 
-    >>> class ambigmatcher(object):
+    >>> class ambigmatcher:
     ...     # mock matcher class to examine implementation of
     ...     # "ambiguous matching" corner case
     ...     def __init__(self, desc, matchfunc):