Update app.py

app.py

@@ -329,7 +329,7 @@ with gr.Blocks() as demo:
                 sentiment_results_pdf2 = gr.HighlightedText(label="Sentiment Analysis - PDF 2")
     
         # Button to extract text from PDFs and perform sentiment analysis
-        b1.click(fn=process_and_compare, inputs=[file1, sheet, file2, sheet], outputs={result,country_1_dropdown])
+        b1.click(fn=process_and_compare, inputs=[file1, sheet, file2, sheet], outputs=[result,country_1_dropdown])
         b2.click(fn=process_pdfs_and_analyze_sentiment, inputs=[file1, file2, sheet], outputs=[sentiment_results_pdf1, sentiment_results_pdf2])