o ?߱i1@sddlZddlZddlZddlmZddlmZmZddlm Z ddl m Z ddl m Z mZddlmZddlmZdd lmZGd d d ejZGd d d eZGdddeZGddde ZdS)N)contextmanager) GeneratorUnion)urlparse) ClientError)FileSystemReaderFileSystemWriter)FileSystemBase)log)easy_iocs(eZdZdZddZfddZZS)S3StreamaK Workaround for PyTorch manually closing the stream before we can upload it to S3. We override the close() as noop and instead call our own _true_close() method to close the stream after we are done using it. 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Args: region (str): The AWS region for S3. path (str): The S3 URI to write checkpoints to. kwargs (dict): Keyword arguments to pass to the parent :class:`FileSystemWriter`. enable_gcs_patch_in_boto3 (bool): Whether to enable GCS patch in boto3 F)rL sync_filesr'Nr)rr1rfsrjrL)rr"rLr'rErrrr1szS3StorageWriter.__init__rcC t|Sr rrrrrrrr2 z&S3StorageWriter.validate_checkpoint_idF) rrrrCrr1rrrrrrrrrrrs&rc s\eZdZ d dedeeejfdeddffdd Ze d eeejfdefd d Z Z S) S3StorageReaderFr"rLr'r(Ncs2t|t||d|_|j||_d|_dS)a- Initialize an S3 reader for distributed checkpointing. 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