Returns location, (latitude, longitude) from XML feed
        and transform to json

def _parse_xml(self,
                   page,
                   is_reverse=False,
                   is_freeform=False,
                   exactly_one=True):
        """
        Returns location, (latitude, longitude) from XML feed
        and transform to json
        """
        # Parse the page
        tree = ET.fromstring(page.encode('utf-8'))

        # Clean tree from namespace to facilitate XML manipulation
        def remove_namespace(doc, namespace):
            """Remove namespace in the document in place."""
            ns = '{%s}' % namespace
            ns = u(ns)
            nsl = len(ns)
            for elem in doc.getiterator():
                if elem.tag.startswith(ns):
                    elem.tag = elem.tag[nsl:]

        remove_namespace(tree, 'http://www.opengis.net/gml')
        remove_namespace(tree, 'http://www.opengis.net/xls')
        remove_namespace(tree, 'http://www.opengis.net/xlsext')

        # Return places as json instead of XML
        places = self._xml_to_json_places(tree, is_reverse=is_reverse)

        if exactly_one:
            return self._parse_place(places[0], is_freeform=is_freeform)
        else:
            return [
                self._parse_place(
                    place,
                    is_freeform=is_freeform
                ) for place in places
            ]