title: AttributeError: 'FreqDist' object has no attribute 'inc'
body: <p>I am a beginner in Python and NLTK. I am trying to run the following code from a tutorial:</p>
  
  <pre><code>from nltk.corpus import gutenberg
  from nltk import FreqDist
  
  fd = FreqDist()
  
  for word in gutenberg.words('austen-sense.txt'):
      fd.inc(word)
  </code></pre>
  
  <p>If I run this I get the following error:</p>
  
  <pre><code>AttributeError: 'FreqDist' object has no attribute 'inc'
  </code></pre>
  
  <p>Any idea what I am doing wrong?</p>