title: ImportError: No module named rest_framework_mongoengine
body: <p>I have installed both DjangoRest framework and Mongo Engine using pip, included <code>rest_framework_mongoengine</code> in <code>INSTALLED_APPS</code> list. Still exception is being thrown when I run server.</p>
  
  <blockquote>
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/utils/autoreload.py", line 227, in wrapper
    fn(*args, **kwargs)</p>
    
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/core/management/commands/runserver.py", line 117, in inner_run
    autoreload.raise_last_exception()</p>
    
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/utils/autoreload.py", line 250, in raise_last_exception
    six.reraise(*_exception)</p>
    
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/utils/autoreload.py", line 227, in wrapper
    fn(*args, **kwargs)</p>
    
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/<strong>init</strong>.py", line 27, in setup
    apps.populate(settings.INSTALLED_APPS)</p>
    
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/apps/registry.py", line 85, in populate
    app_config = AppConfig.create(entry)</p>
    
    <p>File "/Users/anum/Desktop/Python/ConnectBox/env/lib/python2.7/site-packages/django/apps/config.py", line 94, in create
    module = import_module(entry)</p>
    
    <p>File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/importlib/<strong>init</strong>.py", line 37, in import_module
    <strong>import</strong>(name)</p>
    
    <p>ImportError: No module named rest_framework_mongoengine</p>
  </blockquote>
  
  <p>Here is my <a href="https://ghostbin.com/paste/zj29o" rel="nofollow noreferrer">Settings.py</a>.</p>
  
  <p>Using <strong>pip list</strong> command, following packages were listed down:</p>
  
  <pre><code>Django (1.11.2)
  djangorestframework (3.6.3)
  mongoadmin (0.2)
  mongodbforms (0.3)
  mongoengine (0.13.0)
  pip (9.0.1)
  PyJWT (1.5.2)
  pymongo (3.4.0)
  pytz (2017.2)
  setuptools (36.0.1)
  six (1.10.0)
  wheel (0.29.0)
  </code></pre>
  
  <p>Please help me to get in right direction.. Thanks.</p>