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senpy/sentiment-140/sentiment-140.py
2017-03-01 13:23:41 +01:00

36 lines
1.3 KiB
Python

import requests
import json
from senpy.plugins import SentimentPlugin
from senpy.models import Results, Sentiment, Entry
class Sentiment140Plugin(SentimentPlugin):
def analyse_entry(self,entry,params):
lang = params.get("language", "auto")
res = requests.post("http://www.sentiment140.com/api/bulkClassifyJson",
json.dumps({"language": lang,
"data": [{"text": entry.get("text",None)}]
}
)
)
p = params.get("prefix", None)
polarity_value = self.maxPolarityValue*int(res.json()["data"][0]
["polarity"]) * 0.25
polarity = "marl:Neutral"
neutral_value = self.maxPolarityValue / 2.0
if polarity_value > neutral_value:
polarity = "marl:Positive"
elif polarity_value < neutral_value:
polarity = "marl:Negative"
sentiment = Sentiment(id="Sentiment0",
prefix=p,
marl__hasPolarity=polarity,
marl__polarityValue=polarity_value)
entry.sentiments.append(sentiment)
yield entry