diff -r 65f437c240f2 -r 521ac0d7047f mercurial/cffi/mpatch.py
--- a/mercurial/cffi/mpatch.py	Fri Mar 12 17:22:35 2021 -0500
+++ b/mercurial/cffi/mpatch.py	Sat Mar 13 00:38:59 2021 -0500
@@ -9,7 +9,7 @@
 
 from ..pure.mpatch import *
 from ..pure.mpatch import mpatchError  # silence pyflakes
-from . import _mpatch
+from . import _mpatch  # pytype: disable=import-error
 
 ffi = _mpatch.ffi
 lib = _mpatch.lib