Update app.py via AI Editor

app.py

@@ -13,6 +13,7 @@ import tempfile
 import shutil
 import logging
 import json
+import ast
 from flask import request, make_response, g
 from dash.exceptions import PreventUpdate
 import PyPDF2
@@ -309,7 +310,7 @@ def handle_file_upload_and_delete(list_of_contents, delete_clicks, list_of_names
             elif "delete-file-btn" in prop_id:
                 try:
                     btn_id = prop_id.split('.')[0]
-                    btn_id_dict = json.loads(btn_id)
+                    btn_id_dict = ast.literal_eval(btn_id)
                     filename = btn_id_dict['index']
                 except Exception as e:
                     logger.warning(f"Could not extract filename from delete prop_id: {prop_id} error: {e}")