Inserting values in to table in mysql using python shows no syntax error , but the record is not getting updated on db

Question

I'm a newbie to python and i am trying to insert some data in to a mysql table .Seems the query executed with out any issues, however i don't see any record added on to the table.

Any help would be greatly appreciated.

Cheers, Aditya

    connection = mysql.connector.connect(user='sandboxbeta2503', password='XXX',
                                       host='myreleasebox.com',
                                       database='iaas')
            print ("Updating the history in bulk_notification_history")
            cursor = connection.cursor()

            timestamp = time.strftime("%Y-%m-%d %X")
            notification_type = "Notify Inactive users"
            usercount= 45
            query = ("INSERT INTO iaas.bulk_notification_history"
                "(nty_date,notification_type,user_count)"
                "VALUES (%s,%s,%s)")             
           data = (time.strftime('%Y-%m-%d %H:%M:%S'),notification_type, usercount)  
           linker1 = cursor.execute(query,data)   
           print (linker1) 
           cursor.close()
           connection.close()