diff -r e5a0efd26f7a -r 68260c444fd3 mercurial/error.py
--- a/mercurial/error.py	Fri Nov 20 10:31:56 2020 -0800
+++ b/mercurial/error.py	Fri Nov 20 13:55:32 2020 -0800
@@ -272,8 +272,6 @@
         else:
             Exception.__init__(self, message)
 
-    __bytes__ = _tobytes
-
     def format(self):
         from .i18n import _