# HG changeset patch
# User Gregory Szorc <gregory.szorc@gmail.com>
# Date 2018-02-11 18:52:13
# Node ID 788b2e8530ae6c5282089adbf1b8330cc06fc2d3
# Parent  95791b275b73774d83829ab57f393baaadbdfb45

py3: use raw string for file open mode

Otherwise the module importer rewrites it to bytes on Python 3,
which angers Python 3.

Differential Revision: https://phab.mercurial-scm.org/D2137

diff --git a/mercurial/archival.py b/mercurial/archival.py
--- a/mercurial/archival.py
+++ b/mercurial/archival.py
@@ -218,7 +218,7 @@ class zipit(object):
                 dest.tell()
             except (AttributeError, IOError):
                 dest = tellable(dest)
-        self.z = zipfile.ZipFile(dest, 'w',
+        self.z = zipfile.ZipFile(dest, r'w',
                                  compress and zipfile.ZIP_DEFLATED or
                                  zipfile.ZIP_STORED)