SentiWordNet Interface

SentiWordNet can be imported like this:

>>> from nltk.corpus import sentiwordnet as swn

1 SentiSynsets

>>> breakdown = swn.senti_synset('breakdown.n.03')
>>> print(breakdown)
<breakdown.n.03: PosScore=0.0 NegScore=0.25>
>>> breakdown.pos_score()
0.0
>>> breakdown.neg_score()
0.25
>>> breakdown.obj_score()
0.75

2 Lookup

>>> list(swn.senti_synsets('slow')) 
[SentiSynset('decelerate.v.01'), SentiSynset('slow.v.02'),
SentiSynset('slow.v.03'), SentiSynset('slow.a.01'),
SentiSynset('slow.a.02'), SentiSynset('slow.a.04'),
SentiSynset('slowly.r.01'), SentiSynset('behind.r.03')]

>>> happy = swn.senti_synsets('happy', 'a')

>>> all = swn.all_senti_synsets()