'We have seen sitemaps with wrongs ns. Presumably, Google still works
with these, though is not 100% confirmed'

def test_sitemap_wrong_ns(self):

    s = Sitemap('<?xml    version="1.0"    encoding="UTF-8"?>\n<urlset    xmlns="http://www.google.com/schemas/sitemap/0.84">\n        <url    xmlns="">\n                <loc>    http://www.example.com/</loc>\n                <lastmod>2009-08-16</lastmod>\n                <changefreq>daily</changefreq>\n                <priority>1</priority>\n        </url>\n        <url    xmlns="">\n                <loc>    http://www.example.com/2</loc>\n                <lastmod    />\n        </url>\n</urlset>\n')
    self.assertEqual(list(s), [{'priority': '1', 'loc': 'http://www.example.com/', 'lastmod': '2009-08-16', 'changefreq': 'daily'}, {'loc': 'http://www.example.com/2', 'lastmod': ''}])
