--- a/mercurial/ui.py	Sun Oct 06 16:39:13 2019 -0400
+++ b/mercurial/ui.py	Sun Oct 06 16:55:18 2019 -0400
@@ -23,6 +23,7 @@
 from .i18n import _
 from .node import hex
 from .pycompat import (
+    getattr,
     open,
     setattr,
 )