Fix regex so that it works with Python 3.6.

See <https://docs.python.org/3/library/re.html#re.LOCALE>.

Copied from upstream bug report:
https://bugs.launchpad.net/python-mox3/+bug/1665266

From 05064cdb6ea7a16450c6beae2b6f7c6074212a69 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 16 Feb 2017 00:24:10 -0800
Subject: [PATCH] RegexTest: python3.6 compatibility

These fixes are backward-compatible with older python versions:

* raw strings fix invalid escape sequences
* flags=8 fixes ValueError: cannot use LOCALE flag with a str pattern
---
 mox3/tests/test_mox.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mox3/tests/test_mox.py b/mox3/tests/test_mox.py
index 15ac565..3a1af17 100644
--- a/mox3/tests/test_mox.py
+++ b/mox3/tests/test_mox.py
@@ -312,12 +312,12 @@ class RegexTest(testtools.TestCase):
     def testReprWithoutFlags(self):
         """repr should return the regular expression pattern."""
         self.assertTrue(
-            repr(mox.Regex(r"a\s+b")) == "<regular expression 'a\s+b'>")
+            repr(mox.Regex(r"a\s+b")) == r"<regular expression 'a\s+b'>")
 
     def testReprWithFlags(self):
         """repr should return the regular expression pattern and flags."""
-        self.assertTrue(repr(mox.Regex(r"a\s+b", flags=4)) ==
-                        "<regular expression 'a\s+b', flags=4>")
+        self.assertTrue(repr(mox.Regex(r"a\s+b", flags=8)) ==
+                        r"<regular expression 'a\s+b', flags=8>")
 
 
 class IsTest(testtools.TestCase):
-- 
2.10.2

patches/glibc-hurd-getauxval.patch?id=d461dd81cd688ddd63892204a19b3456810352e8'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/patches/glibc-hurd-getauxval.patch'>
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<div class='path'>path: <a href='/guix/log/?id=d461dd81cd688ddd63892204a19b3456810352e8'>root</a>/<a href='/guix/log/gnu?id=d461dd81cd688ddd63892204a19b3456810352e8'>gnu</a>/<a href='/guix/log/gnu/packages?id=d461dd81cd688ddd63892204a19b3456810352e8'>packages</a>/<a href='/guix/log/gnu/packages/patches?id=d461dd81cd688ddd63892204a19b3456810352e8'>patches</a>/<a href='/guix/log/gnu/packages/patches/glibc-hurd-getauxval.patch?id=d461dd81cd688ddd63892204a19b3456810352e8'>glibc-hurd-getauxval.patch</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/patches/glibc-hurd-getauxval.patch?id=d461dd81cd688ddd63892204a19b3456810352e8&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-09-14 23:52:37 +0200'>2023-09-14</span></td><td><a href='/guix/commit/gnu/packages/patches/glibc-hurd-getauxval.patch?id=b2cc649999ed97b62517dcfb7cf21ee731c97487'>gnu: glibc/hurd: Add unsubmitted getauxval patch from upstream.</a><span class='msg-avail'>...<span class='msg-tooltip'>This support building of gdk-pixbuf, gobject-introspection.

* gnu/packages/patches/glibc-hurd-getauxval.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/base.scm (glibc/hurd)[source]: Use it.
</span></span></td><td>Janneke Nieuwenhuizen</td></tr>