diff -r c7d236b55a3e -r 3018749a71bb mercurial/branchmap.py
--- a/mercurial/branchmap.py	Sun Jul 14 23:21:28 2019 -0700
+++ b/mercurial/branchmap.py	Fri Jul 12 23:34:24 2019 -0700
@@ -218,6 +218,8 @@
             self._verifybranch(k)
             yield k, v
 
+    items = iteritems
+
     def hasbranch(self, label):
         """ checks whether a branch of this name exists or not """
         self._verifybranch(label)