Update app.py

app.py

@@ -1,6 +1,7 @@
 import gradio as gr
 import os
 import time
+import pandas as pd
 
 
 from langchain.document_loaders import OnlinePDFLoader #for laoding the pdf
@@ -136,17 +137,17 @@ with gr.Blocks(css=css,theme=gr.themes.Monochrome()) as demo:
         
         with gr.Row():
             status = gr.Textbox(label="Status", placeholder="", interactive=False)
-            load_pdf = gr.Button(label="Load PDF").style(full_width=False)
+            load_pdf = gr.Button("Load PDF").style(full_width=False)
             
         with gr.Row():
             document_type = gr.Radio(['Deed of Trust', 'Transmittal Summary'], label="Select the Document Type")
             answers = gr.Textbox(label="Answers to Predefined Question set")
-            answers_for_predefined_question_set = gr.Button(label="Get Answers to Pre-defined Question set").style(full_width=False)
+            answers_for_predefined_question_set = gr.Button("Get Answers to Pre-defined Question set").style(full_width=False)
               
         with gr.Row():
             input = gr.Textbox(label="Type in your question")
             output = gr.Dataframe(label="Answer")
-            submit_query = gr.Button(label ="Submit your own question").style(full_width=False)
+            submit_query = gr.Button("Submit your own question").style(full_width=False)
         
  
     load_pdf.click(load_pdf_and_generate_embeddings, inputs=[pdf_doc, openai_key], outputs=status)