--- a/mercurial/peer.py	Sat Oct 14 01:20:12 2017 -0400
+++ b/mercurial/peer.py	Thu Oct 05 14:15:05 2017 -0400
@@ -90,7 +90,7 @@
         if not encresref:
             return encargsorres # a local result in this case
         self = args[0]
-        encresref.set(self._submitone(f.func_name, encargsorres))
+        encresref.set(self._submitone(f.__name__, encargsorres))
         return next(batchable)
     setattr(plain, 'batchable', f)
     return plain