diff -r b62000a28812 -r 1c93e0237a24 mercurial/patch.py
--- a/mercurial/patch.py	Fri Jul 06 21:41:36 2018 +0900
+++ b/mercurial/patch.py	Fri Jul 06 21:49:25 2018 +0900
@@ -28,6 +28,7 @@
 from . import (
     copies,
     diffhelper,
+    diffutil,
     encoding,
     error,
     mail,
@@ -41,7 +42,6 @@
 )
 from .utils import (
     dateutil,
-    diffutil,
     procutil,
     stringutil,
 )