Daemon to export data from the databroker continuously

export_daemon.py

import databroker.databroker as db

def export_daemon():
    last_updated = now
    while True:
        last_updated_2 = now
        hdrs = db(start_time=last_updated))
        last_updated = last_updated_2.copy()
        if hdrs:
            for hdr in hdrs:
                try:
                    db.export(new_db, stuff)
                except:
                    pass
                    # need something more elegent here but I don't know the error for existing record
         else:
            sleep(6*50)