datetime

## Don't use this code
## in big databases this is a no no
## Use the compare/filter function of your database

MAX_AGE_TD = datetime.timedelta(1)
MAX_AGE_SECONDS = MAX_AGE_TD.total_seconds()

def delete_old(table):
    for item in table.all():
        if (datetime.datetime.now() - item['timestamp']) > MAX_AGE_TD:
            table.delete(item)
            print('Deleted', item['id'])