--- a/mercurial/archival.py Sun Oct 06 13:17:19 2019 -0400 +++ b/mercurial/archival.py Sun Oct 06 13:28:56 2019 -0400 @@ -17,6 +17,7 @@ from .i18n import _ from .node import nullrev +from .pycompat import open from . import ( error,