Update app.py

app.py

@@ -80,7 +80,7 @@ def get_excel_files(folder):
 
 def get_sheet_names(file):
     xls = pd.ExcelFile(os.path.join(PDF_FOLDER, file))
-    return xls.sheet_names
+    return gr.update(choices=xls.sheet_names)
 
 def process_and_compare(file1, sheet1, file2, sheet2):
     def process_file(file_path, sheet_name):
@@ -236,7 +236,6 @@ with gr.Blocks() as demo:
             return get_sheet_names(file)
         
         file1.change(fn=update_sheets, inputs=file1, outputs=sheet)
-        file2.change(fn=update_sheets, inputs=file2, outputs=sheet)
         
         b1 = gr.Button("Compare Data")
         b1.click(fn=process_and_compare, inputs=[file1, sheet, file2, sheet], outputs=result)