diff -r c2e284cee333 -r eef9a2d67051 hgext/convert/cvsps.py
--- a/hgext/convert/cvsps.py	Sun Oct 06 13:17:19 2019 -0400
+++ b/hgext/convert/cvsps.py	Sun Oct 06 13:28:56 2019 -0400
@@ -11,6 +11,7 @@
 import re
 
 from mercurial.i18n import _
+from mercurial.pycompat import open
 from mercurial import (
     encoding,
     error,