--- a/mercurial/chgserver.py	Sun Oct 06 14:51:45 2019 -0400
+++ b/mercurial/chgserver.py	Sun Oct 06 14:58:42 2019 -0400
@@ -51,6 +51,7 @@
 import time
 
 from .i18n import _
+from .pycompat import setattr
 
 from . import (
     commandserver,