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app.py

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+# URL: https://huggingface.co/spaces/gradio/sentiment-analysis
+# imports
+import gradio as gr
+import nltk
+from nltk.sentiment.vader import SentimentIntensityAnalyzer
+
+# load and set up model
+nltk.download("vader_lexicon")
+sid = SentimentIntensityAnalyzer()
+
+# define core function 
+def sentiment_analysis(text):
+    scores = sid.polarity_scores(text)
+    del scores["compound"]
+    return scores
+
+# define an interface with a textbox input, a label output, and interpretation
+demo = gr.Interface(
+    fn=sentiment_analysis, 
+    inputs=gr.Textbox(placeholder="Enter a positive or negative sentence here..."), 
+    outputs="label", 
+    interpretation="default")
+
+# launch
+demo.launch()