Update app.py

app.py

@@ -173,6 +173,9 @@ def process_ner_data(your_bot_token):
 def process_classifier_ner_data(your_bot_token):
     return get_classifier_ner(your_bot_token)
 
+def export_csv(d):
+    d.to_csv("output.csv")
+    return gr.File.update(value="output.csv", visible=True)
 
 demo = gr.Blocks()
 
@@ -188,6 +191,7 @@ with demo:
             classifier_ner_button = gr.Button("Get Classifier-NER Output")
             ner_button = gr.Button("Get NER Output")
             clear = gr.Button("Clear")
+            export = gr.Button("Export")
             
         with gr.TabItem("User Guide"):
             with gr.Row(): 
@@ -213,7 +217,8 @@ with demo:
     
     ner_button.click(process_ner_data,inputs=your_bot_token, outputs=ner_df)
     classifier_ner_button.click(process_classifier_ner_data,inputs=your_bot_token, outputs=ner_df)
-    clear.click(lambda: None, None, ner_df, queue=True)  
+    clear.click(lambda: None, None, ner_df, queue=True)
+    export.click(export_csv, inputs=ner_df, outputs=ner_df)
     
 demo.queue(concurrency_count=3)
 demo.launch() # share=True, debug=True