title: ImportError: No module named datadog
body: <p>I'm new to datadog. I followed this <a href="http://docs.datadoghq.com/api/" rel="nofollow noreferrer">post</a>, and replaced in my app/api keys.</p>
  <p>I have : <code>nginx_dd.py</code></p>
  <pre><code># Make sure you replace the API and/or APP key below
  # with the ones for your account
  
  from datadog import initialize, api
  import time
  
  options = {
      'api_key': '***',
      'app_key': '***'
  }
  
  initialize(**options)
  
  now = int(time.time())
  query = 'system.cpu.idle{*}by{host}'
  print api.Metric.query(start=now - 3600, end=now, query=query)
  </code></pre>
  <hr />
  <p>When I run it <code>python nginx_dd.py</code>, I kept getting</p>
  <blockquote>
  <p>ImportError: No module named datadog</p>
  </blockquote>
  <hr />
  <p>Any hints / suggestions on this will be a huge helps !</p>