Transform the xml ElementTree due to XML webservice return to json

def _xml_to_json_places(tree, is_reverse=False):
        """
        Transform the xml ElementTree due to XML webservice return to json
        """

        select_multi = (
            'GeocodedAddress'
            if not is_reverse
            else 'ReverseGeocodedLocation'
        )

        adresses = tree.findall('.//' + select_multi)
        places = []

        sel_pl = './/Address/Place[@type="{}"]'
        for adr in adresses:
            el = {}
            el['pos'] = adr.find('./Point/pos')
            el['street'] = adr.find('.//Address/StreetAddress/Street')
            el['freeformaddress'] = adr.find('.//Address/freeFormAddress')
            el['municipality'] = adr.find(sel_pl.format('Municipality'))
            el['numero'] = adr.find(sel_pl.format('Numero'))
            el['feuille'] = adr.find(sel_pl.format('Feuille'))
            el['section'] = adr.find(sel_pl.format('Section'))
            el['departement'] = adr.find(sel_pl.format('Departement'))
            el['commune_absorbee'] = adr.find(sel_pl.format('CommuneAbsorbee'))
            el['commune'] = adr.find(sel_pl.format('Commune'))
            el['insee'] = adr.find(sel_pl.format('INSEE'))
            el['qualite'] = adr.find(sel_pl.format('Qualite'))
            el['territoire'] = adr.find(sel_pl.format('Territoire'))
            el['id'] = adr.find(sel_pl.format('ID'))
            el['id_tr'] = adr.find(sel_pl.format('ID_TR'))
            el['bbox'] = adr.find(sel_pl.format('Bbox'))
            el['nature'] = adr.find(sel_pl.format('Nature'))
            el['postal_code'] = adr.find('.//Address/PostalCode')
            el['extended_geocode_match_code'] = adr.find(
                './/ExtendedGeocodeMatchCode'
            )

            place = {}

            def testContentAttrib(selector, key):
                """
                Helper to select by attribute and if not attribute,
                value set to empty string
                """
                return selector.attrib.get(
                    key,
                    None
                ) if selector is not None else None

            place['accuracy'] = testContentAttrib(
                adr.find('.//GeocodeMatchCode'), 'accuracy')

            place['match_type'] = testContentAttrib(
                adr.find('.//GeocodeMatchCode'), 'matchType')

            place['building'] = testContentAttrib(
                adr.find('.//Address/StreetAddress/Building'), 'number')

            place['search_centre_distance'] = testContentAttrib(
                adr.find('.//SearchCentreDistance'), 'value')

            for key, value in iteritems(el):
                if value is not None:
                    place[key] = value.text
                    if value.text is None:
                        place[key] = None
                else:
                    place[key] = None

            # We check if lat lng is not empty and unpack accordingly
            if place['pos']:
                lat, lng = place['pos'].split(' ')
                place['lat'] = lat.strip()
                place['lng'] = lng.strip()
            else:
                place['lat'] = place['lng'] = None

            # We removed the unused key
            place.pop("pos", None)
            places.append(place)

        return places