Thanks. I try to use set() suggested by you. However, not successful. Please see: >>> synsets = list(wn.all_synsets('n')) >>> synsets[:5] [Synset('entity.n.01'), Synset('physical_entity.n.01'), Synset('abstraction.n.06'), Synset('thing.n.12'), Synset('object.n.01')] >>> lemma_set = set() >>> for synset in synsets: lemma_set.add(synset.lemma_names)
Traceback (most recent call last): File "<pyshell#43>", line 2, in <module> lemma_set.add(synset.lemma_names) TypeError: unhashable type: 'list' >>> for synset in synsets: lemma_set.add(set(synset.lemma_names)) Traceback (most recent call last): File "<pyshell#45>", line 2, in <module> lemma_set.add(set(synset.lemma_names)) TypeError: unhashable type: 'set' -- http://mail.python.org/mailman/listinfo/python-list