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Update vaderSentiment.py #1

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Update vaderSentiment.py #1

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2 changes: 1 addition & 1 deletion vaderSentiment/vaderSentiment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -287,7 +287,7 @@ def sentiment_valence(self, valence, sentitext, item, i, sentiments):
valence = self.lexicon[item_lowercase]

# check for "no" as negation for an adjacent lexicon item vs "no" as its own stand-alone lexicon item
if item_lowercase == "no" and words_and_emoticons[i + 1].lower() in self.lexicon:
if item_lowercase == "no" and i != len(words_and_emoticons)-1 and words_and_emoticons[i + 1].lower() in self.lexicon:
# don't use valence of "no" as a lexicon item. Instead set it's valence to 0.0 and negate the next item
valence = 0.0
if (i > 0 and words_and_emoticons[i - 1].lower() == "no") \
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