def download_fileobj(self, Bucket, Key, Fileobj, ExtraArgs=None, Callback=None, Config=None): """Download an object from S3 to a file-like object. The file-like object must be in binary mode. This is a managed transfer which will perform a multipart download in multiple threads if necessary. Usage:: import boto3 s3 = boto3.client('s3') with open('filename', 'wb') as data: s3.download_fileobj('mybucket', 'mykey', data) :type Fileobj: a file-like object :param Fileobj: A file-like object to download into. At a minimum, it must implement the `write` method and must accept bytes. :type Bucket: str :param Bucket: The name of the bucket to download from. :type Key: str :param Key: The name of the key to download from. :type ExtraArgs: dict :param ExtraArgs: Extra arguments that may be passed to the client operation. :type Callback: method :param Callback: A method which takes a number of bytes transferred to be periodically called during the download. :type Config: boto3.s3.transfer.TransferConfig :param Config: The transfer configuration to be used when performing the download. """ if not hasattr(Fileobj, 'write'): raise ValueError('Fileobj must implement write') subscribers = None if Callback is not None: subscribers = [ProgressCallbackInvoker(Callback)] config = Config if config is None: config = TransferConfig() with create_transfer_manager(self, config) as manager: future = manager.download( bucket=Bucket, key=Key, fileobj=Fileobj, extra_args=ExtraArgs, subscribers=subscribers) return future.result()
def copy(self, CopySource, Bucket, Key, ExtraArgs=None, Callback=None, SourceClient=None, Config=None): """Copy an object from one S3 location to another. This is a managed transfer which will perform a multipart copy in multiple threads if necessary. Usage:: import boto3 s3 = boto3.resource('s3') copy_source = { 'Bucket': 'mybucket', 'Key': 'mykey' } s3.meta.client.copy(copy_source, 'otherbucket', 'otherkey') :type CopySource: dict :param CopySource: The name of the source bucket, key name of the source object, and optional version ID of the source object. The dictionary format is: ``{'Bucket': 'bucket', 'Key': 'key', 'VersionId': 'id'}``. Note that the ``VersionId`` key is optional and may be omitted. :type Bucket: str :param Bucket: The name of the bucket to copy to :type Key: str :param Key: The name of the key to copy to :type ExtraArgs: dict :param ExtraArgs: Extra arguments that may be passed to the client operation :type Callback: method :param Callback: A method which takes a number of bytes transferred to be periodically called during the copy. :type SourceClient: botocore or boto3 Client :param SourceClient: The client to be used for operation that may happen at the source object. For example, this client is used for the head_object that determines the size of the copy. If no client is provided, the current client is used as the client for the source object. :type Config: boto3.s3.transfer.TransferConfig :param Config: The transfer configuration to be used when performing the copy. """ subscribers = None if Callback is not None: subscribers = [ProgressCallbackInvoker(Callback)] config = Config if config is None: config = TransferConfig() with create_transfer_manager(self, config) as manager: future = manager.copy( copy_source=CopySource, bucket=Bucket, key=Key, extra_args=ExtraArgs, subscribers=subscribers, source_client=SourceClient) return future.result()
def test_on_progress(self): callback = mock.Mock() subscriber = ProgressCallbackInvoker(callback) subscriber.on_progress(bytes_transferred=1) callback.assert_called_with(1)
def test_on_progress(self): callback = mock.Mock() subscriber = ProgressCallbackInvoker(callback) subscriber.on_progress(bytes_transferred=1) callback.assert_called_with(1)
def upload_fileobj(self, Fileobj, Bucket, Key, ExtraArgs=None, Callback=None, Config=None): """Upload a file-like object to S3. The file-like object must be in binary mode. This is a managed transfer which will perform a multipart upload in multiple threads if necessary. Usage:: import boto3 s3 = boto3.client('s3') with open('filename', 'rb') as data: s3.upload_fileobj(data, 'mybucket', 'mykey') :type Fileobj: a file-like object :param Fileobj: A file-like object to upload. At a minimum, it must implement the `read` method, and must return bytes. :type Bucket: str :param Bucket: The name of the bucket to upload to. :type Key: str :param Key: The name of the key to upload to. :type ExtraArgs: dict :param ExtraArgs: Extra arguments that may be passed to the client operation. For allowed upload arguments see boto3.s3.transfer.S3Transfer.ALLOWED_UPLOAD_ARGS. :type Callback: function :param Callback: A method which takes a number of bytes transferred to be periodically called during the upload. :type Config: boto3.s3.transfer.TransferConfig :param Config: The transfer configuration to be used when performing the upload. """ if not hasattr(Fileobj, 'read'): raise ValueError('Fileobj must implement read') subscribers = None if Callback is not None: subscribers = [ProgressCallbackInvoker(Callback)] config = Config if config is None: config = TransferConfig() with create_transfer_manager(self, config) as manager: future = manager.upload( fileobj=Fileobj, bucket=Bucket, key=Key, extra_args=ExtraArgs, subscribers=subscribers, ) return future.result()