NLTK example for extracting links Does not work

Question

I got parts of parts of the nltk book before this section on relationship extraction. Can someone help me understand why the code below is not working? There seems to be no show_raw_rtuple () method

IN = re.compile(r'.*\bin\b(?!\b.+ing)') for doc in nltk.corpus.ieer.parsed_docs('NYT_19980315'): for rel in nltk.sem.extract_rels('ORG', 'LOC', doc, corpus='ieer', pattern = IN): print nltk.sem.show_raw_rtuple(rel) 

Answer 1

It depends on your version of NLTK. On NLTK 2.x, this should work:

  print nltk.sem.relextract.show_raw_rtuple(rel) 

In NLTK 3.x, show_raw_rtuple () seems to have been replaced by rtuple ():

  print(nltk.sem.relextract.rtuple(rel))