human
Complete this python program:
def executor(queue, task, out):
assistant
#Here is the Python code you requested.

    """The function used to execute tasks in the background process.
    """
    logger.debug('                task    started')
    class LogOutput(object, ):
        'Facility    to    log    output    at    intervals.'
        def __init__(self, out_queue):
            self.out_queue = out_queue
            self.stdout = sys.stdout
            sys.stdout = self
        def __del__(self):
            sys.stdout = self.stdout
        def flush(self):
            pass
        def write(self, data):
            self.out_queue.put(data)
    W2P_TASK = Storage({'id': task.task_id, 'uuid': task.uuid, 'run_id': task.run_id})
    stdout = LogOutput(out)
    try:
        if task.app:
            os.chdir(os.environ['WEB2PY_PATH'])
            from gluon.shell import env, parse_path_info
            from gluon import current
            level = logging.getLogger().getEffectiveLevel()
            logging.getLogger().setLevel(logging.WARN)
            (a, c, f) = parse_path_info(task.app)
            _env = env(a=a, c=c, import_models=True, extra_request={'is_scheduler': True})
            logging.getLogger().setLevel(level)
            f = task.function
            functions = current._scheduler.tasks
            if (not functions):
                _function = _env.get(f)
            else:
                _function = functions.get(f)
            if (not isinstance(_function, CALLABLETYPES)):
                raise NameError(("name    '%s'    not    found    in    scheduler's    environment" % f))
            _env.update({'W2P_TASK': W2P_TASK})
            from gluon import current
            current.W2P_TASK = W2P_TASK
            globals().update(_env)
            args = _decode_list(loads(task.args))
            vars = loads(task.vars, object_hook=_decode_dict)
            result = dumps(_function(*args, **vars))
        else:
            result = eval(task.function)(*loads(task.args, object_hook=_decode_dict), **loads(task.vars, object_hook=_decode_dict))
        if (len(result) >= 1024):
            (fd, temp_path) = tempfile.mkstemp(suffix='.w2p_sched')
            with os.fdopen(fd, 'w')...