app changes

app.py

@@ -211,6 +211,7 @@ def get_bot_valresponse():
 def data():
     tbl_htmls = {}
     tbl_selected = session.get('tbl_selected', [])
+    print("-------------------------Hello world------------------------")
     print(tbl_selected)
     for tblname in tbl_selected:
         # Read sqlite query results into a pandas DataFrame