hgext/histedit.py

--- a/hgext/histedit.py	Sun Oct 06 16:39:13 2019 -0400
+++ b/hgext/histedit.py	Sun Oct 06 16:55:18 2019 -0400
@@ -206,7 +206,10 @@
 import struct
 
 from mercurial.i18n import _
-from mercurial.pycompat import open
+from mercurial.pycompat import (
+    getattr,
+    open,
+)
 from mercurial import (
     bundle2,
     cmdutil,