django - TypeError: __init__() got multiple values for keyword argument 'view_name' -

i using django rest framework, , not sure why getting error.

models.py

from __future__ import unicode_literals  django.db import models django.contrib.auth.models import abstractuser  class user(abstractuser):     followers = models.manytomanyfield('self', related_name='followees', symmetrical=false)  class post(models.model):     author = models.foreignkey(user, related_name = 'posts')     title = models.charfield(max_length = 255)     body = models.textfield(blank = true, null = true)  class photo(models.model):     post = models.foreignkey(post, related_name = 'photos')     image = models.imagefield(upload_to = '%y/%m/%d') 

serializers.py

from rest_framework import serializers  .models import *  class userserializer(serializers.modelserializer):     # getting list of posts made particular users using username.     posts = serializers.hyperlinkedidentityfield(         'posts',         view_name = 'userpost-list',         lookup_field = 'username'     )      class meta:         model = user         fields = ('id', 'username', 'first_name', 'last_name', 'posts',)  class postserializer(serializers.modelserializer):     author = userserializer(required = false)     photos = serializers.hyperlinkedidentityfield(         'photos',         view_name = 'postphoto-list'     )      def get_validated_exclusions(self):         # need exclude 'author' since we'll add later         # based off request user         exclusions = super(postserializer, self).get_validated_exclusions()         return exclusions + ['author']      class meta:         model = post  class photoserializer(serializers.modelserializer):     image = serializers.field('image.url')      class meta:         model = photo 

views.py

from rest_framework import generics, permissions  .serializers import * .models import *  class userlist(generics.listcreateapiview):     model = user     serializer_class = userserializer     permission_classes = [         permissions.allowany # publically available     ]  class userdetail(generics.retrieveapiview):     model = user     serializer_class = userserializer     lookup_field = 'username'  class postlist(generics.listcreateapiview):     model = post     serializer_class = postserializer     permission_classes = [         permissions.allowany     ]  class postdetail(generics.retrieveapiview):     model = post     serializer_class = postserializer     permission_classes = [         permissions.allowany     ]  class userpostlist(generics.listapiview):     """     lists posts of particular user.     """     model = post     serializer_class = postserializer      def get_queryset(self):         queryset = super(userpostlist, self).get_queryset()         return queryset.filter(author__username = self.kwargs.get('username'))  class photolist(generics.listcreateapiview):     model = photo     serializer_class = photoserializer     permission_classes = [         permissions.allowany     ]  class photodetail(generics.retrieveapiview):     model = photo     serializer_class = photoserializer     permission_classes = [         permissions.allowany     ]  class postphotolist(generics.listapiview):     model = photo     serializer_class = photoserializer      def get_queryset(self):         queryset = super(postphotolist, self).get_queryset()         return queryset.filter(post__pk = self.kwargs.get('pk')) 

urls.py in app directory

from django.conf.urls import patterns, url, include  .views import *  urlpatterns = [     # user urls     url(r'^users/$', userlist.as_view(), name='user-list'),     url(r'^users/(?p<username>[0-9a-za-z_-]+)/$', userdetail.as_view(), name='user-detail'),     url(r'^users/(?p<username>[0-9a-za-z_-]+)/posts/$', userpostlist.as_view(), name='userpost-list'),      # post urls     url(r'^posts/$', postlist.as_view(), name='post-list'),     url(r'^posts/(?p<pk>\d+)/$', postdetail.as_view(), name='post-detail'),     url(r'^posts/(?p<pk>\d+)/photos/$', postphotolist.as_view(), name='postphoto-list'),      # photo urls     url(r'^photos/$', photolist.as_view(), name='photo-list'),     url(r'^photos/(?p<pk>\d+)/$', photodetail.as_view(), name='photo-detail'), ] 

when try run check command on terminal, or runserver, error: typeerror: init() got multiple values keyword argument 'view_name'

what doing wrong exactly, , how can fix problem?

the first argument hyperlinkedidentityfield view_name. you're passing initial argument, seems same field name; remove argument.