Question

我是django的新手。我正在尝试构建一个应用程序。但问题是，当我尝试启动服务器时，仍然在views.py中定义了函数，它说“模块”对象没有属性。

股票/ urls.py

from django.conf.urls import url
from stock import views

urlpatterns = [
    url(r'^stocks/$', views.stock_list),
    url(r'^stocks/(?P<pk>[0-9]+)/$', views.stock_detail),
]

股票/ views.py

from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
from rest_framework.renderers import JSONRenderer
from rest_framework.parsers import JSONParser
from stock.models import Stock
from stock.serializers import StockSerializer

class JSONResponse(HttpResponse):
    # An HttpResponse that renders its content into JSON.

    def __init__(self, data, **kwargs):
        content = JSONRenderer().render(data)
        kwargs['content_type'] = 'application/json'
        super(JSONResponse, self).__init__(content, **kwargs)

    @csrf_exempt
    def stock_list(request):
        # List all code snippets, or create a new snippet.
        if request.method == 'GET':
            stocks = Stock.objects.all()
            serializer = StockSerializer(stock, many=True)
            return JSONResponse(serializer.data)
        elif request.method == 'POST':
            data = JSONParser().parse(request)
            serializer = StockSerializer(data=data)
            if serializer.is_valid():
                serializer.save()
                return JSONResponse(serializer.data, status=201)
            return JSONResponse(serializer.errors, status=400)

    @csrf_exempt
    def stock_detail(request, pk):
        # Retrieve, update or delete a code snippet.
        try:
            stock = Stock.objects.get(pk=pk)
        except Stock.DoesNotExist:
            return HttpResponse(status=404)

        if request.method == 'GET':
            serializer = StockSerializer(stock)
            return JSONResponse(serializer.data)
        elif request.method == 'PUT':
            data = JSONParser().parse(request)
            serializer = StockSerializer(stock, data=data)
            if serializer.is_valid():
                serializer.save()
                return JSONResponse(serializer.data)
            return JSONResponse(serializer.errors, status=400)
        elif request.method == 'DELETE':
            Stock.delete()
            return HttpResponse(status=204)

我收到了以下错误

File "/users /ha/code/RiskAdvisor/riskadvisor/stock/urls.py", line 5, in <module>
    url(r'^stocks/$', views.stock_list),
AttributeError: 'module' object has no attribute 'stock_list'

Answer 1

正如所写，stock_list是JSONResponse类中的一种方法（request应该是JSONResponse类型，通常称为self）。显然，这不是你的意思。它应该是一个简单的模块级功能。简单地说一次。

class JSONResponse(HttpResponse):
    # An HttpResponse that renders its content into JSON.

    def __init__(self, data, **kwargs):
        ...

@csrf_exempt
def stock_list(request):
    ...

我使用的IDE PyDev表示您的代码出错：

方法stock_list应该将self作为第一个参数

它还告诉我serializer = StockSerializer(stock, many=True)包含一个拼写错误 - 那里没有stock变量。你可能意味着stocks？

使用一个好的IDE。

'module'对象没有属性错误

1 个答案: