diff -r 83a349aaeba3 -r 7f51bc36194d mercurial/encoding.py
--- a/mercurial/encoding.py	Sat Nov 16 15:34:47 2019 +0900
+++ b/mercurial/encoding.py	Sat Nov 16 16:09:39 2019 +0900
@@ -268,11 +268,11 @@
 
     def strtolocal(s):
         # type: (str) -> bytes
-        return s
+        return s  # pytype: disable=bad-return-type
 
     def strfromlocal(s):
         # type: (bytes) -> str
-        return s
+        return s  # pytype: disable=bad-return-type
 
     strmethod = pycompat.identity