title: TypeError: __init__() takes 1 positional argument but 2 were given
body: <p>I am develop a simple rest api using Django 1.10
  When I run my server and call app url I get an error:</p>
  
  <blockquote>
    <p>TypeError: <code>__init__()</code> takes 1 positional argument but 2 were given</p>
  </blockquote>
  
  <p>GET /demo/ HTTP/1.1" 500 64736</p>
  
  <h1>Traceback</h1>
  
  <pre><code>Environment:
  Request Method: GET
  Request URL: http://localhost:8000/demo/
  
  Django Version: 1.10.4
  Python Version: 3.5.2
  Installed Applications:
  ['django.contrib.admin',
   'django.contrib.auth',
   'django.contrib.contenttypes',
   'django.contrib.sessions',
   'django.contrib.messages',
   'django.contrib.staticfiles',
   'mydemoapp',
   'rest_framework']
  Installed Middleware:
  ['django.middleware.security.SecurityMiddleware',
   'django.contrib.sessions.middleware.SessionMiddleware',
   'django.middleware.common.CommonMiddleware',
   'django.middleware.csrf.CsrfViewMiddleware',
   'django.contrib.auth.middleware.AuthenticationMiddleware',
   'django.contrib.messages.middleware.MessageMiddleware',
   'django.middleware.clickjacking.XFrameOptionsMiddleware']
  
  Traceback:
  
      File "/home/aqib/DjangoProject/mydemoenv/lib/python3.5/site-    packages/django/core/handlers/exception.py" in inner
      39. response = get_response(request)
  
      File "/home/aqib/DjangoProject/mydemoenv/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response 
      187. response = self.process_exception_by_middleware(e, request)
  
      File "/home/aqib/DjangoProject/mydemoenv/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
      185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
  
      Exception Type: TypeError at /demo/
      Exception Value: __init__() takes 1 positional argument but 2 were given
  </code></pre>
  
  <h1>models.py</h1>
  
  <pre><code>from django.db import models
  
  class ProfileModel(models.Model):
      name = models.CharField(max_length=30, blank=False, default='Your Name')
      address = models.CharField(max_length=100, blank=True)
      contact = models.IntegerField()
  
      def __str__(self):
          return '%s %s' % (self.name, self.address)
  </code></pre>
  
  <h1>views.py</h1>
  
  <pre><code>from django.shortcuts import render
  from rest_framework import viewsets
  from mydemoapp.models import ProfileModel
  from .serializers import ProfileSerializer
  
  class ProfileView(viewsets.ModelViewSet):
      profile = ProfileModel.objects.all()
      serializer_class = ProfileSerializer
  </code></pre>
  
  <h1>serializers.py</h1>
  
  <pre><code>from .models import ProfileModel
  from rest_framework import serializers
  
  class ProfileSerializer(serializers.ModelSerializer):
  
      class Meta:
          model = ProfileModel
          fields = ('name', 'address', 'contact')
  </code></pre>
  
  <h1>urls.py (Application Url)</h1>
  
  <pre><code>from django.conf.urls import url
  from mydemoapp import views
  
  urlpatterns = [
  url(r'^$', views.ProfileView),
  ]
  </code></pre>
  
  <h1>urls.py (project url)</h1>
  
  <pre><code>from django.conf.urls import url, include
  from django.contrib import admin
  
  urlpatterns = [
      url(r'^admin/', admin.site.urls),
      url(r'^demo/', include('mydemoapp.urls')),
  ]
  </code></pre>