Update code_df_custom.py

code_df_custom.py

@@ -16,7 +16,7 @@ def run_code(file, code):
             exec(code, scope, scope)
         except Exception as e:
             scope['new_df'] = df
-            return scope['new_df'], e
+            return scope['new_df'], str(e)
 
         # print(scope.keys())
         if 'new_df' not in scope: