# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 2018-02-11 18:49:00
# Node ID 95791b275b73774d83829ab57f393baaadbdfb45
# Parent  f3d8f61c425d8213103910da5e4a4bb414461768

py3: convert content-type to bytes

This fixes the exception:

  TypeError: %b requires a bytes-like object, or an object that
  implements __bytes__, not 'str'

On the line:

  ui.debug('Content-Type: %s\n' % content_type)

And it prevents additional exceptions that use the content_type
variable later.

Differential Revision: https://phab.mercurial-scm.org/D2136

diff --git a/mercurial/patch.py b/mercurial/patch.py
--- a/mercurial/patch.py
+++ b/mercurial/patch.py
@@ -242,7 +242,7 @@ def extract(ui, fileobj):
         ok_types = ('text/plain', 'text/x-diff', 'text/x-patch')
         message = ''
         for part in msg.walk():
-            content_type = part.get_content_type()
+            content_type = pycompat.bytestr(part.get_content_type())
             ui.debug('Content-Type: %s\n' % content_type)
             if content_type not in ok_types:
                 continue