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

ction='/guix/log/gnu/installer/steps.scm'>
<input type='hidden' name='id' value='4f0b408be3e1dacd4e1a639e2c5bc950116fa154'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
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</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>root</a>/<a href='/guix/log/gnu?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>gnu</a>/<a href='/guix/log/gnu/installer?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>installer</a>/<a href='/guix/log/gnu/installer/steps.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154'>steps.scm</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/installer/steps.scm?id=4f0b408be3e1dacd4e1a639e2c5bc950116fa154&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-02-02 16:46:44 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/steps.scm?id=726d0bd2f36363392ba2fcefd6e5d4aeed27dc9e'>installer: Use named prompt to abort or break installer steps.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer/steps.scm (run-installer-steps): Set up
'installer-step prompt.
* gnu/installer/newt/ethernet.scm (run-ethernet-page)
* gnu/installer/newt/final.scm (run-config-display-page,
run-install-failed-page)
* gnu/installer/newt/keymap.scm (run-layout-page, run-variant-page)
* gnu/installer/newt/locale.scm (run-language-page,
run-territory-page, run-codeset-page, run-modifier-page,
run-locale-page)
* gnu/installer/newt/network.scm (run-technology-page,
wait-service-online)
* gnu/installer/newt/page.scm (run-listbox-selection-page,
run-checkbox-tree-page)
* gnu/installer/newt/partition.scm (button-exit-action)
* gnu/installer/newt/services.scm (run-desktop-environments-cbt-page,
run-networking-cbt-page, run-other-services-cbt-page,
run-network-management-page)
* gnu/installer/newt/timezone.scm (run-timezone-page)
* gnu/installer/newt/user.scm (run-user-page)
* gnu/installer/newt/welcome.scm (run-menu-page)
* gnu/installer/newt/wifi.scm (run-wifi-page): Use the 'installer-step
prompt to abort.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2022-02-02 16:46:43 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/steps.scm?id=4f2fd33b4f27f590ec2337daef339cf3e2337dab'>installer: Use new installer-log-line everywhere.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/installer.scm (installer-program)
* gnu/installer/final.scm (install-locale)
* gnu/installer/newt.scm (init)
* gnu/installer/newt/final.scm (run-final-page)
* gnu/installer/newt/page.scm (run-form-with-clients)
* gnu/installer/newt/partition.scm (run-partitioning-page)
* gnu/installer/parted.scm (eligible-devices, mkpart,
luks-format-and-open, luks-close, mount-user-partitions,
umount-user-partitions, free-parted):
* gnu/installer/steps.scm (run-installer-steps):
* gnu/installer/utils.scm (run-command, send-to-clients): Use it.

Signed-off-by: Mathieu Othacehe &lt;othacehe@gnu.org&gt;
</span></span></td><td>Josselin Poiret</td></tr>
<tr><td><span title='2022-02-02 16:46:42 +0100'>2022-02-02</span></td><td><a href='/guix/commit/gnu/installer/steps.scm?id=0d37a5df7e709cadca97cfbbf9c680dfe54b8302'>installer: Add crash dump upload support.</a><span class='msg-avail'>...<span class='msg-tooltip'>Suggested-by: Josselin Poiret &lt;dev@jpoiret.xyz&gt;

* gnu/installer/dump.scm: New file.
* gnu/installer/newt/dump.scm: New file.
* gnu/local.mk (INSTALLER_MODULES): Add them.
* gnu/installer/record.scm (&lt;installer&gt;)[dump-page]: New field.
* gnu/installer/steps.scm (%current-result): New variable.
(run-installer-steps): Update it.
* gnu/installer.scm (installer-program): Add tar and gip to the installer
path. Add guile-webutils and gnutls to the Guile extensions. Generate and send
the crash dump report.
* gnu/installer/newt.scm (exit-error): Add a report argument. Display the
report id.
(dump-page): New procedure.
(newt-installer): Update it.
</span></span></td><td>Mathieu Othacehe</td></tr>