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Exercise

Word tokenization with NLTK

Here, you'll be using the first scene of Monty Python's Holy Grail, which has been pre-loaded as scene_one. Feel free to check it out in the IPython Shell!

Your job in this exercise is to utilize word_tokenize and sent_tokenize from nltk.tokenize to tokenize both words and sentences from Python strings - in this case, the first scene of Monty Python's Holy Grail.

Instructions
100 XP
  • Import the sent_tokenize and word_tokenize functions from nltk.tokenize.
  • Tokenize all the sentences in scene_one using the sent_tokenize() function.
  • Tokenize the fourth sentence in sentences, which you can access as sentences[3], using the word_tokenize() function.
  • Find the unique tokens in the entire scene by using word_tokenize() on scene_one and then converting it into a set using set().
  • Print the unique tokens found. This has been done for you, so hit 'Submit Answer' to see the results!
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