--- a/hgext/largefiles/lfutil.py	Sun Oct 06 13:17:19 2019 -0400
+++ b/hgext/largefiles/lfutil.py	Sun Oct 06 13:28:56 2019 -0400
@@ -16,6 +16,7 @@
 
 from mercurial.i18n import _
 from mercurial.node import hex
+from mercurial.pycompat import open
 
 from mercurial import (
     dirstate,