import graphene class GeoInput(graphene.InputObjectType): lat = graphene.Float(required=True) lng = graphene.Float(required=True) class Address(graphene.ObjectType): latlng = graphene.String() class Query(graphene.ObjectType): address = graphene.Field(Address, geo=graphene.Argument(GeoInput)) def resolve_address(self, args, info): geo = args.get('geo') return Address(latlng="({},{})".format(geo.get('lat'), geo.get('lng'))) schema = graphene.Schema(query=Query) query = ''' query something{ address(geo: {lat:32.2, lng:12}) { latlng } } ''' result = schema.execute(query) print(result.data['address']['latlng'])