def __init__()

in s3transfer/processpool.py [0:0]


    def __init__(self, client_kwargs=None, config=None):
        """Downloads S3 objects using process pools

        :type client_kwargs: dict
        :param client_kwargs: The keyword arguments to provide when
            instantiating S3 clients. The arguments must match the keyword
            arguments provided to the
            `botocore.session.Session.create_client()` method.

        :type config: ProcessTransferConfig
        :param config: Configuration for the downloader
        """
        if client_kwargs is None:
            client_kwargs = {}
        self._client_factory = ClientFactory(client_kwargs)

        self._transfer_config = config
        if config is None:
            self._transfer_config = ProcessTransferConfig()

        self._download_request_queue = multiprocessing.Queue(1000)
        self._worker_queue = multiprocessing.Queue(1000)
        self._osutil = OSUtils()

        self._started = False
        self._start_lock = threading.Lock()

        # These below are initialized in the start() method
        self._manager = None
        self._transfer_monitor = None
        self._submitter = None
        self._workers = []