python中父调用抽象方法
我是python新手。我想在父类中定义一些抽象方法并使用它们。我写了这样的代码python中父调用抽象方法,python,django,python-2.7,python-3.x,Python,Django,Python 2.7,Python 3.x,我是python新手。我想在父类中定义一些抽象方法并使用它们。我写了这样的代码 class BaseListAPI(APIView): __metaclass__ = abc.ABCMeta def get(self, request): search_object, start, count = tools.handlers.read_get_request_data(request.GET) order_by = requ
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
例如,当我调用self.get\u query\u set()时,我希望调用子函数,但从未调用它,相反,调用抽象父方法会导致错误!!我错过了什么?我刚刚犯了一个愚蠢的错误!它不起作用,因为当调用函数是父类时,它没有放括号!现在这工作就像一个魅力
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"""
我只是犯了个愚蠢的错误!它不起作用,因为当调用函数是父类时,它没有放括号!现在这工作就像一个魅力
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"""
据我所知,您的代码应该可以正常工作,所以问题在于您没有发布的部分。请发布调用代码(触发错误所需的最低限度)、完整匹配的回溯,并在代码段中添加缺少的导入-我假设
APIView
来自django rest framework,但这只是一个猜测。据我所知,您的代码应该可以正常工作,所以问题在于您没有发布的部分。请发布调用代码(触发错误所需的最低限度)、完整匹配的回溯,并在代码段中添加缺少的导入-我假设APIView
来自django rest framework,但这是一个猜测。