mercurial/util.py

--- a/mercurial/util.py	Sun Aug 13 14:12:28 2017 +0900
+++ b/mercurial/util.py	Wed Aug 16 13:50:11 2017 +0900
@@ -175,11 +175,10 @@
 def bytesinput(fin, fout, *args, **kwargs):
     sin, sout = sys.stdin, sys.stdout
     try:
+        sys.stdin, sys.stdout = encoding.strio(fin), encoding.strio(fout)
         if pycompat.ispy3:
-            sys.stdin, sys.stdout = encoding.strio(fin), encoding.strio(fout)
             return encoding.strtolocal(input(*args, **kwargs))
         else:
-            sys.stdin, sys.stdout = fin, fout
             return raw_input(*args, **kwargs)
     finally:
         sys.stdin, sys.stdout = sin, sout