title: Error message with nltk.sentiment.vader in Python
body: <p>I am a beginner at Python and am trying to use nltk.sentiment.vader but get a recurrent error message despite multiple attempts to fix it.  I previously installed most of NTLK (3 modules were out of date so couldn't install them).  I then installed nltk.sentiment.vader using the command line prompt and my output was "Successfully installed vaderSentiment-2.5".   "vaderSentiment in c:\anaconda\lib\site-packages". I then run the script below and repeatedly get the error message below:</p>
  
  <pre><code>from nltk.sentiment.vader import SentimentIntensityAnalyzer
  sid = SentimentIntensityAnalyzer()
  ss = sid.polarity_scores(sentence_that_I want_to_analyze)  
  print(ss)
  </code></pre>
  
  <p>output: </p>
  
  <p>LookupError: </p>
  
  <hr>
  
  <p>Resource
    'sentiment/vader_lexicon.zip/vader_lexicon/vader_lexicon.txt'
    not found.  Please use the NLTK Downloader to obtain the
    resource:  >>> nltk.download()
    Searched in:
      - 'C:\Users\name/nltk_data'
      - 'C:\nltk_data'
      - 'D:\nltk_data'
      - 'E:\nltk_data'
      - 'C:\Anaconda\nltk_data'
      - 'C:\Anaconda\lib\nltk_data'
      - 'C:\Users\name\AppData\Roaming\nltk_data'
      - ''</p>
  
  <hr>
  
  <p>I noticed that the error message doesn't include the location where the package was installed =c:\anaconda\lib\site-packages.  Is this the reason that I am getting this error?  How do I fix this?</p>
  
  <p>Thank you very much for the help</p>