--- a/mercurial/utils/procutil.py	Thu Mar 03 17:39:20 2022 -0800
+++ b/mercurial/utils/procutil.py	Thu Mar 03 18:28:30 2022 -0800
@@ -342,7 +342,7 @@
 def filter(s, cmd):
     """filter a string through a command that transforms its input to its
     output"""
-    for name, fn in pycompat.iteritems(_filtertable):
+    for name, fn in _filtertable.items():
         if cmd.startswith(name):
             return fn(s, cmd[len(name) :].lstrip())
     return pipefilter(s, cmd)
@@ -448,7 +448,7 @@
 
     env = dict(encoding.environ)
     if environ:
-        env.update((k, py2shell(v)) for k, v in pycompat.iteritems(environ))
+        env.update((k, py2shell(v)) for k, v in environ.items())
     env[b'HG'] = hgexecutable()
     return env