我想打一个比较基本的工具，在S3浏览水桶作为文件层次结构，而不是文件名的简单与他们斜线列表。

I want to make a relatively basic tool to browse a bucket in S3 as a file hierarchy rather than simply a list of filenames with slashes in them.

目前，我使用博托取得水桶键名的列表，然后解析键名，使文件夹和文件的嵌套字典。但是，这一过程需要这么长时间！即使只是通过每个键搞定所有的更高层次的文件夹列表需要超过15分钟。

Currently, I am using boto to get the list of keynames in a bucket and then parsing the keynames to make a nested dictionary of the "folders" and files. However, that process takes so long! Even just going through each key to get a list of all higher level folders takes 15+ minutes.

如何如Cyber​​duck的工具给文件夹列表这么快？

How do tools such as cyberduck give a list of folders so quickly?

推荐答案

检查此链接： http://docs.aws.amazon.com/AmazonS3/latest/dev/ListingKeysHierarchy.html

listObjects（）有一个名为参数分隔符，它可以设置为 / 和产生的对象列表看起来完全一样的文件树。我想这就是你要找的内容。

listObjects() has a parameter called delimiter, which could be set to / and resulting list of objects will look exactly as a tree of files. I think this is what you're looking for.