--- a/mercurial/obsutil.py	Thu Mar 03 17:39:20 2022 -0800
+++ b/mercurial/obsutil.py	Thu Mar 03 18:28:30 2022 -0800
@@ -18,7 +18,6 @@
     encoding,
     error,
     phases,
-    pycompat,
     util,
 )
 from .utils import dateutil
@@ -997,7 +996,7 @@
             base[tuple(nsuccset)] = n
     return [
         {b'divergentnodes': divset, b'commonpredecessor': b}
-        for divset, b in pycompat.iteritems(base)
+        for divset, b in base.items()
     ]