# HG changeset patch
# User Pulkit Goyal <7895pulkit@gmail.com>
# Date 2017-06-02 05:05:21
# Node ID c032e137e494b36007a877a6049db4c1c184bf16
# Parent  49e1e5acb8ff21f7023f4b47474f74d8c43ad12a

py3: convert exception to bytes to pass into ui.warn()

Here encoding.strtolocal() is used because exc maybe an IOError which could
contain a valid non-ascii unicode.

diff --git a/mercurial/hook.py b/mercurial/hook.py
--- a/mercurial/hook.py
+++ b/mercurial/hook.py
@@ -13,6 +13,7 @@ import sys
 from .i18n import _
 from . import (
     demandimport,
+    encoding,
     error,
     extensions,
     pycompat,
@@ -97,7 +98,7 @@ def _pythonhook(ui, repo, htype, hname, 
                          (hname, exc.args[0]))
         else:
             ui.warn(_('error: %s hook raised an exception: '
-                           '%s\n') % (hname, exc))
+                      '%s\n') % (hname, encoding.strtolocal(str(exc))))
         if throw:
             raise
         if not ui.tracebackflag: