test_etree.py 文件源码

def test_namespace_cleanup_keep_prefixes_top(self):
        xml = ('<root xmlns:n64="NS64" xmlns:unused1="UNUSED" xmlns:no="NO">'
               '<sub xmlns:foo="FOO">'
               '<a xmlns:unused2="UNUSED"><n64:x xmlns:a="A" a:attr="X"/></a>'
               '<foo>foo:bar</foo>'
               '</sub>'
               '</root>').encode('utf8')
        root = self.etree.fromstring(xml)
        self.assertEqual(xml, self.etree.tostring(root))
        self.etree.cleanup_namespaces(
            root,
            top_nsmap={'foo': 'FOO', 'unused1': 'UNUSED'},
            keep_ns_prefixes=['foo'])
        self.assertEqual(
            b'<root xmlns:n64="NS64" xmlns:foo="FOO">'
            b'<sub>'
            b'<a><n64:x xmlns:a="A" a:attr="X"/></a>'
            b'<foo>foo:bar</foo>'
            b'</sub>'
            b'</root>',
            self.etree.tostring(root))