Some time ago, someone on SO asked how to retrieve a list of words for a given synset using NLTK\'s wordnet wrapper. Here is one of the suggested responses:
Use:
wn.synset('dog.n.1').name()
instead of:
wn.synset('dog.n.1').name
because NLTK changed Synset properties to get functions instead. see https://github.com/nltk/nltk/commit/ba8ab7e23ea2b8d61029484098fd62d5986acd9c
This is a good list of changes to NLTK's API to suit py3.x: https://github.com/nltk/nltk/wiki/Porting-your-code-to-NLTK-3.0