I'm new to python. I want to define some abstract methods in my parent class and use them. I wrote a code like this

class BaseListAPI(APIView):
    __metaclass__  = abc.ABCMeta

    def get(self, request):
        search_object, start, count = 
        tools.handlers.read_get_request_data(request.GET)
        order_by = request.GET.get('order_by')

        return get_successful_response(self.get_query_set.list(
            without_user_serializer=self.get_serializer,
            search_object=search_object,
            start=start,
            count=count,
            order_by=order_by
        ))

    @abc.abstractmethod
    def get_query_set(self):
        """Method that should do something."""

    @abc.abstractmethod
    def get_serializer(self):
        """this method gets the serializer"""


class TourListListAPI(BaseListAPI):
    def get_query_set(self):
        return models.Tour.objects

    def get_serializer(self):
        return without_user.TourSerializer

When i call self.get_query_set() for example i expect the child function call but it never get called instead abstract parent methods getting called witch results in an error!! What i'm missing here?