__init__.py 文件源码

def register_prefix(self, nspair):
        """
        Register with ElementTree a set of namespaces

        :param nspair: A dictionary of prefixes and uris to use when
            constructing the text representation.
        :return:
        """
        for prefix, uri in nspair.items():
            try:
                ElementTree.register_namespace(prefix, uri)
            except AttributeError:
                # Backwards compatibility with ET < 1.3
                ElementTree._namespace_map[uri] = prefix
            except ValueError:
                pass