serializer.py 文件源码

def _from_xml(self, datastring):
        if datastring is None:
            return None
        plurals = set(self.metadata.get('plurals', {}))
        try:
            node = etree.fromstring(datastring)
            root_tag = self._get_key(node.tag)
            links = self._get_links(root_tag, node)
            result = self._from_xml_node(node, plurals)
            if root_tag == constants.VIRTUAL_ROOT_KEY:
                return result
            return dict({root_tag: result}, **links)
        except Exception as e:
            parseError = False
            if (hasattr(etree, 'ParseError') and
                    isinstance(e, getattr(etree, 'ParseError'))):
                parseError = True
            elif isinstance(e, expat.ExpatError):
                parseError = True
            if parseError:
                msg = _("Cannot understand XML")
                raise exception.MalformedResponseBody(reason=msg)
            else:
                raise