--- a/mercurial/utils/compression.py	Sun Oct 06 16:39:13 2019 -0400
+++ b/mercurial/utils/compression.py	Sun Oct 06 16:55:18 2019 -0400
@@ -10,6 +10,7 @@
 import collections
 import zlib
 
+from ..pycompat import getattr
 from .. import (
     error,
     i18n,