title: ImportError: No module named dateutil
body: <p>I am trying to follow the example in the "First Steps with Celery" document.  I have installed Celery using pip.</p>
  
  <p>I created a file called tasks.py in ~/python/celery, and it contains the following:</p>
  
  <pre><code>from celery import Celery
  
  celery = Celery('tasks', broker='amqp://guest@localhost//')
  
  @celery.task
  def add(x, y):
      return x + y
  </code></pre>
  
  <p>I started a worker using celery -A tasks worker --loglevel=info while in the ~/python/celery directory, and it seems to be running.</p>
  
  <p>In a separate Terminal window, I launched Python and ran the following:</p>
  
  <pre><code>from tasks import add
  add.delay(4, 4)
  </code></pre>
  
  <p>I get the error:
      File "/Library/Python/2.7/site-packages/celery/utils/timeutils.py", line 17, in 
      from dateutil import tz
      ImportError: No module named dateutil</p>
  
  <p>How do I install dateutils?  It is listed as an installed module when I type "pip freeze"</p>
  
  <p>Thanks!</p>