python - boto3 中 download_file 和 download_fileobj 有何不同？

Question

我想下载 amazon s3 中的文件。我已经使用了boto3 sdk，我想知道boto3中download_file和download_fileobj之间的区别？

Answer 1

来自documentation ，明确提到:

download_file(Bucket, Key, Filename, ExtraArgs=None, Callback=None, Config=None)

Download an S3 object to a file.

和

download_fileobj(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.

一种是文件，另一种是二进制模式的类文件对象。