diff -r 428177ad70b0 -r dea766fca7e1 mercurial/keepalive.py
--- a/mercurial/keepalive.py	Mon Feb 21 11:10:08 2022 -0700
+++ b/mercurial/keepalive.py	Mon Feb 21 11:10:27 2022 -0700
@@ -193,7 +193,7 @@
 
     def close_all(self):
         """close all open connections"""
-        for host, conns in pycompat.iteritems(self._cm.get_all()):
+        for host, conns in self._cm.get_all().items():
             for h in conns:
                 self._cm.remove(h)
                 h.close()