diff -r 649d3ac37a12 -r d783f945a701 mercurial/pycompat.py
--- a/mercurial/pycompat.py	Sun Oct 06 19:25:18 2019 -0400
+++ b/mercurial/pycompat.py	Mon Oct 07 00:04:04 2019 -0400
@@ -316,7 +316,7 @@
         they can be passed as keyword arguments as dictonaries with bytes keys
         can't be passed as keyword arguments to functions on Python 3.
         """
-        dic = dict((k.decode('latin-1'), v) for k, v in dic.iteritems())
+        dic = dict((k.decode('latin-1'), v) for k, v in dic.items())
         return dic
 
     def byteskwargs(dic):
@@ -324,7 +324,7 @@
         Converts keys of python dictonaries to bytes as they were converted to
         str to pass that dictonary as a keyword argument on Python 3.
         """
-        dic = dict((k.encode('latin-1'), v) for k, v in dic.iteritems())
+        dic = dict((k.encode('latin-1'), v) for k, v in dic.items())
         return dic
 
     # TODO: handle shlex.shlex().