title: Why is csv.DictReader giving me a no attribute error?
body: <p>My CSV file is </p>
  
  <pre><code>200
  Service
  </code></pre>
  
  <p>The code I'm putting into the interpreter is  </p>
  
  <pre><code>snav = csv.DictReader(open("screennavigation.csv"), delimiter=',')
  print snav.fieldnames
  ['200']
  
  for line in snav:
  ...     print(line)
  ...
  {'200': 'Service'}
  
  snav["200"]
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  AttributeError: DictReader instance has no attribute '__getitem__'
  </code></pre>
  
  <p>I thought that <code>DictReader</code> was meant to return a dictionary. I suspect I'm missing something brutally obvious.</p>