diff -r 649d3ac37a12 -r d783f945a701 mercurial/statprof.py
--- a/mercurial/statprof.py	Sun Oct 06 19:25:18 2019 -0400
+++ b/mercurial/statprof.py	Mon Oct 07 00:04:04 2019 -0400
@@ -574,7 +574,7 @@
 
     # compute sums for each function
     functiondata = []
-    for fname, sitestats in grouped.iteritems():
+    for fname, sitestats in pycompat.iteritems(grouped):
         total_cum_sec = 0
         total_self_sec = 0
         total_percent = 0
@@ -653,7 +653,7 @@
                 else:
                     children[site] = 1
 
-    parents = [(parent, count) for parent, count in parents.iteritems()]
+    parents = [(parent, count) for parent, count in pycompat.iteritems(parents)]
     parents.sort(reverse=True, key=lambda x: x[1])
     for parent, count in parents:
         fp.write(
@@ -697,7 +697,7 @@
         )
     )
 
-    children = [(child, count) for child, count in children.iteritems()]
+    children = [(child, count) for child, count in pycompat.iteritems(children)]
     children.sort(reverse=True, key=lambda x: x[1])
     for child, count in children:
         fp.write(
@@ -821,7 +821,7 @@
     fd, path = pycompat.mkstemp()
 
     with open(path, b"w+") as file:
-        for line, count in lines.iteritems():
+        for line, count in pycompat.iteritems(lines):
             file.write(b"%s %d\n" % (line, count))
 
     if outputfile is None: