diff -r 65f437c240f2 -r 521ac0d7047f mercurial/utils/hashutil.py
--- a/mercurial/utils/hashutil.py	Fri Mar 12 17:22:35 2021 -0500
+++ b/mercurial/utils/hashutil.py	Sat Mar 13 00:38:59 2021 -0500
@@ -3,7 +3,7 @@
 import hashlib
 
 try:
-    from ..thirdparty import sha1dc
+    from ..thirdparty import sha1dc  # pytype: disable=import-error
 
     sha1 = sha1dc.sha1
 except (ImportError, AttributeError):