Update app.py

app.py

@@ -3,6 +3,12 @@ import pandas as pd
 from datetime import date
 import pymssql
 
+from datetime import datetime
+
+start_date = datetime.strptime(start_date, "%Y-%m-%d").date()
+end_date = datetime.strptime(end_date, "%Y-%m-%d").date()
+
+
 def run_procedure(server, database, username, password, start_date, end_date):
     try:
         # Connect to SQL Server using pymssql (no ODBC required)