Skip tests that fail with newer versions of Python.

Patch copied from Gentoo:

https://gitweb.gentoo.org/repo/gentoo.git/tree/dev-python/unittest2/files/unittest2-1.1.0-python3.5-test.patch

diff --git a/unittest2/test/test_loader.py b/unittest2/test/test_loader.py
index 683f662..347eea5 100644
--- a/unittest2/test/test_loader.py
+++ b/unittest2/test/test_loader.py
@@ -509,6 +509,7 @@ class Test_TestLoader(unittest2.TestCase):
     #
     # What happens when an impossible name is given, relative to the provided
     # `module`?
+    @unittest.skipIf(sys.version_info[:2] >= (3, 5), "python 3.5 has problems here")
     def test_loadTestsFromName__relative_malformed_name(self):
         loader = unittest.TestLoader()
 
@@ -811,6 +812,7 @@ class Test_TestLoader(unittest2.TestCase):
     # TestCase or TestSuite instance."
     #
     # What happens when presented with an impossible module name?
+    @unittest.skipIf(sys.version_info[:2] >= (3, 5), "python 3.5 has problems here")
     def test_loadTestsFromNames__malformed_name(self):
         loader = unittest2.TestLoader()
 
@@ -918,6 +920,7 @@ class Test_TestLoader(unittest2.TestCase):
     # "The method optionally resolves name relative to the given module"
     #
     # What happens when presented with an impossible attribute name?
+    @unittest.skipIf(sys.version_info[:2] >= (3, 5), "python 3.5 has problems here")
     def test_loadTestsFromNames__relative_malformed_name(self):
         loader = unittest.TestLoader()
 
diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/sqlite.scm'>
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<option value='grep'>log msg</option>
<option value='author'>author</option>
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<div class='path'>path: <a href='/guix/log/?id=cdffb73c04d0c68d7edf19ee02fc3a554dea04bc'>root</a>/<a href='/guix/log/gnu?id=cdffb73c04d0c68d7edf19ee02fc3a554dea04bc'>gnu</a>/<a href='/guix/log/gnu/packages?id=cdffb73c04d0c68d7edf19ee02fc3a554dea04bc'>packages</a>/<a href='/guix/log/gnu/packages/sqlite.scm?id=cdffb73c04d0c68d7edf19ee02fc3a554dea04bc'>sqlite.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/packages/sqlite.scm?id=cdffb73c04d0c68d7edf19ee02fc3a554dea04bc&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2019-05-04 16:25:53 +0200'>2019-05-04</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=63432c96473e689b9d01c366a507bec1f9e05f22'>gnu: SQLite: Update to 3.28.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sqlite.scm (sqlite): Update to 3.28.0.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-09 21:27:23 +0100'>2019-02-09</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=46d5a7e33d672d302c88292a9c297a9823f67a2c'>gnu: sqlite: Enable FTS3 support.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is no longer enabled by default since 3.25.0.

* gnu/packages/sqlite.scm (sqlite)[arguments]: Add "-DSQLITE_ENABLE_FTS3"
to #:configure-flags.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-09 21:27:23 +0100'>2019-02-09</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=f73f2e17d9f9e43c6d8842bce497006851537934'>gnu: sqlite: Update to 3.27.1.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sqlite.scm (sqlite): Update to 3.27.1.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-09 21:11:00 +0100'>2019-02-09</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=ebbb7286b91e21cb26153e3d0a3ea8017cf16224'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-09 20:58:16 +0100'>2019-02-09</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=44ed6284669d65307d90ac6dea90cf5067def3e8'>gnu: tracker: Build against the regular SQLite.</a><span class='msg-avail'>...<span class='msg-tooltip'>FTS5 is enabled by default in the current version.

* gnu/packages/sqlite.scm (sqlite-with-fts5): Remove variable.
* gnu/packages/gnome.scm (tracker)[inputs]: Change from that to SQLITE.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-02-07 22:10:16 +0100'>2019-02-07</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=0293b353bdde6b9593138a48fc78a500423fda0d'>gnu: sqlite: Remove graft for 3.26.0.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/sqlite.scm (sqlite): Update to 3.26.0.
[replacement]: Remove.
(sqlite-3.26.0): Remove variable.
</span></span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2019-01-16 16:08:22 +0100'>2019-01-16</span></td><td><a href='/guix/commit/gnu/packages/sqlite.scm?id=cd0322a3efd96577de9ab35e4432d1ae399257c8'>gnu: Move sqlite to separate module.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/databases.scm (sqlite, sqlite-3.26.0, sqlite-with-fts5,
sqlite-with-column-metadata): Move variables from here...
* gnu/packages/sqlite.scm: ...to this new module.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/apl.scm,
gnu/packages/bittorrent.scm,
gnu/packages/calendar.scm,
gnu/packages/code.scm,
gnu/packages/crypto.scm,
gnu/packages/databases.scm,
gnu/packages/dc.scm,
gnu/packages/disk.scm,
gnu/packages/ebook.scm,
gnu/packages/education.scm,
gnu/packages/emacs.scm,
gnu/packages/emulators.scm,
gnu/packages/file-systems.scm,
gnu/packages/freedesktop.scm,
gnu/packages/ftp.scm,
gnu/packages/games.scm,
gnu/packages/geo.scm,
gnu/packages/gnome.scm,
gnu/packages/gnunet.scm,
gnu/packages/gnupg.scm,
gnu/packages/gnuzilla.scm,
gnu/packages/gps.scm,
gnu/packages/guile.scm,
gnu/packages/ibus.scm,
gnu/packages/kerberos.scm,
gnu/packages/kodi.scm,
gnu/packages/lisp.scm,
gnu/packages/mail.scm,
gnu/packages/messaging.scm,
gnu/packages/mpd.scm,
gnu/packages/music.scm,
gnu/packages/networking.scm,
gnu/packages/nfs.scm,
gnu/packages/ocaml.scm,
gnu/packages/package-management.scm,
gnu/packages/pdf.scm,
gnu/packages/photo.scm,
gnu/packages/php.scm,
gnu/packages/python.scm,
gnu/packages/qt.scm,
gnu/packages/ruby.scm,
gnu/packages/scheme.scm,
gnu/packages/sync.scm,
gnu/packages/syndication.scm,
gnu/packages/version-control.scm,
gnu/packages/video.scm,
gnu/packages/web-browsers.scm,
gnu/packages/webkit.scm: Adjust module references.
</span></span></td><td>Ricardo Wurmus</td></tr>