title: Django giving error ImportError: No module named 'corsheaders'
body: <p>I am a newbie to Django and trying to enable CORS for my server. I couldn't find a built-in solution so I went with <a href="https://github.com/ottoyiu/django-cors-headers" rel="nofollow noreferrer">django-cors-headers</a>. I am running my server in conda environment on python 3.5 in Ubuntu 15.04. So I installed it with pip3 install django-cors-header. When I do pip3 list it shoes django-cors-header installed at version 1.2.2. In my django app I did. </p>
  
  <pre><code>INSTALLED_APPS = [
      'django.contrib.admin',
      'django.contrib.auth',
      'django.contrib.contenttypes',
      'django.contrib.sessions',
      'django.contrib.messages',
      'django.contrib.staticfiles',
      'corsheaders',
      'polls',
  ]
  
  MIDDLEWARE = [
      'django.middleware.security.SecurityMiddleware',
      'django.contrib.sessions.middleware.SessionMiddleware',
      'corsheaders.middleware.CorsMiddleware',
      'django.middleware.common.CommonMiddleware',
      'django.middleware.csrf.CsrfViewMiddleware',
      'django.contrib.auth.middleware.AuthenticationMiddleware',
      'django.contrib.messages.middleware.MessageMiddleware',
      'django.middleware.clickjacking.XFrameOptionsMiddleware',
  ]
  
  CORS_ORIGIN_ALLOW_ALL = True
  </code></pre>
  
  <p>But when I run <code>python3 manage.py runserver</code> It stops saying <code>ImportError: No module named 'corsheaders'</code>. 
  I have read all SO posts regarding it but none seem to solve my problem. 
  Kindly help</p>