Update app.py

app.py

@@ -54,6 +54,7 @@ def ner(text):
     return {"text": text, "entities": output}
     
 def sentiment_df(text):
+    df = pd.DataFrame(columns=['Text', 'Label', 'Score'])
     text_list = sentence_tokenizer.tokenize(text)
     result = [sentiment_analysis(text) for text in text_list]
     sentence = []