Question

我正在尝试运行一个使用django rest framework的应用程序。但是我收到导入错误＆＃34;无法导入名称DurationField＆＃34;。如何解决此错误？

Views.py

from django.shortcuts import render
from django.contrib.auth.models import User
from django.http import Http404

from restapp.serializers import UserSerializer
from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import status


class UserList(APIView):

#List all user,create new one
def get(self,request,format=None):
    users = User.objects.all()
    serializer = UserSerializer(users,many=True)
    return Response(serializer.data)

def post(self,request,format=None):
    serializer= UserSerializer(data=request.DATA)
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data, status=status.HTTP_201_CREATED)
    return Response(serializer.errors,status=status.HTTP_400_BAD_REQUEST)

def delete(self,request,pk, format=None):
    user = self.get_object(pk)
    user.delete()
    return Response(status=status.HTTP_204_NO_CONTENT)

class UserDetail(APIView):

#Retrive update,or delete a user instance

def get_object(self,pk):
    try:
        return User.objects.get(pk=pk)
    except user.DoesNotExist:
        raise 404

def get(self,request,pk,format=None):
    user = self.get_object(pk)
    user = UserSerializer(user)
    return Response(user.data)

def put(self,request,pk,format=None):
    user = self.get_object(pk)
    serializer=UserSerializer(user,data = request.DATA)
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data)
    return Response(serializer.errors,status=status.HTTP_400_BAD_REQUEST)


def delete(self,request,pk,format=None):
    user = self.get_object(pk)
    user.delete()
    return Response(status=status.HTTP_204_NO_CONTENT)

serializers.py

from django.contrib.auth.models import User
from rest_framework import serializers

class UserSerializer(serializers.ModelSerializer):
  class Meta:
     model = User
     fields = ('id','username','firstname','last_name','email')

它指向此文件serializers.py，第18行作为错误源。

enter image description here

Answer 1

从屏幕截图中，我可以看到您正在使用Django 1.7。

DRF导入的DurationField是在Django 1.8中引入的。

所以你必须升级你的Django才能使这个版本的DRF正常工作。

无法导入名称DurationField

1 个答案: