title: What is NLTK POS tagger asking me to download?
body: <p>I just started using a part-of-speech tagger, and I am facing many problems. </p>
  
  <p>I started POS tagging with the following:</p>
  
  <pre><code>import nltk
  text=nltk.word_tokenize("We are going out.Just you and me.")
  </code></pre>
  
  <p>When I want to print <code>'text'</code>, the following happens:</p>
  
  <pre><code>print nltk.pos_tag(text)
  Traceback (most recent call last):
  File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  File "F:\Python26\lib\site-packages\nltk\tag\__init__.py", line 63, in pos_tag
  tagger = nltk.data.load(_POS_TAGGER)
  File "F:\Python26\lib\site-packages\nltk\data.py", line 594, in load
  resource_val = pickle.load(_open(resource_url))
  File "F:\Python26\lib\site-packages\nltk\data.py", line 673, in _open
   return find(path).open()
   File "F:\Python26\lib\site-packages\nltk\data.py", line 455, in find
     raise LookupError(resource_not_found)`  
  LookupError:
   Resource 'taggers/maxent_treebank_pos_tagger/english.pickle' not
   found.  Please use the NLTK Downloader to obtain the resource:
  
  &gt;&gt;&gt; nltk.download().
  
   Searched in:
      - 'C:\\Documents and Settings\\Administrator/nltk_data'
      - 'C:\\nltk_data'
      - 'D:\\nltk_data'
      - 'E:\\nltk_data'
      - 'F:\\Python26\\nltk_data'
      - 'F:\\Python26\\lib\\nltk_data'
      - 'C:\\Documents and Settings\\Administrator\\Application Data\\nltk_data'
  </code></pre>
  
  <p>I used <code>nltk.download()</code> but it did not work.</p>