Python boto，列出bucket中特定目录的内容

问题描述

我只能通过 S3 访问 S3 存储桶中的特定目录.

I have S3 access only to a specific directory in an S3 bucket.

例如，如果我尝试列出整个存储桶，则使用 s3cmd 命令:

For example, with the s3cmd command if I try to list the whole bucket:

    $ s3cmd ls s3://bucket-name

我收到一个错误:访问存储桶my-bucket-url"被拒绝

但是如果我尝试访问存储桶中的特定目录，我可以看到内容:

But if I try access a specific directory in the bucket, I can see the contents:

    $ s3cmd ls s3://bucket-name/dir-in-bucket

现在我想用 python boto 连接到 S3 存储桶.类似于:

Now I want to connect to the S3 bucket with python boto. Similary with:

    bucket = conn.get_bucket('bucket-name')

我收到一个错误:boto.exception.S3ResponseError: S3ResponseError: 403 Forbidden

但如果我尝试:

    bucket = conn.get_bucket('bucket-name/dir-in-bucket')

脚本停止了大约 10 秒，然后打印出错误.波纹管是完整的痕迹.知道如何进行此操作吗?

The script stalls for about 10 seconds, and prints out an error afterwards. Bellow is the full trace. Any idea how to proceed with this?

注意问题是关于 boto 版本 2 模块，而不是 boto3.

Note question is about the boto version 2 module, not boto3.

Traceback (most recent call last):
  File "test_s3.py", line 7, in <module>
    bucket = conn.get_bucket('bucket-name/dir-name')
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/connection.py", line 471, in get_bucket
    return self.head_bucket(bucket_name, headers=headers)
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/connection.py", line 490, in head_bucket
    response = self.make_request('HEAD', bucket_name, headers=headers)
  File "/usr/local/lib/python2.7/dist-packages/boto/s3/connection.py", line 633, in make_request
    retry_handler=retry_handler
  File "/usr/local/lib/python2.7/dist-packages/boto/connection.py", line 1046, in make_request
    retry_handler=retry_handler)
  File "/usr/local/lib/python2.7/dist-packages/boto/connection.py", line 922, in _mexe
    request.body, request.headers)
  File "/usr/lib/python2.7/httplib.py", line 958, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python2.7/httplib.py", line 992, in _send_request
    self.endheaders(body)
  File "/usr/lib/python2.7/httplib.py", line 954, in endheaders
    self._send_output(message_body)
  File "/usr/lib/python2.7/httplib.py", line 814, in _send_output
    self.send(msg)
  File "/usr/lib/python2.7/httplib.py", line 776, in send
    self.connect()
  File "/usr/lib/python2.7/httplib.py", line 1157, in connect
    self.timeout, self.source_address)
  File "/usr/lib/python2.7/socket.py", line 553, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
socket.gaierror: [Errno -2] Name or service not known

推荐答案

对于 boto3

import boto3

s3 = boto3.resource('s3')
my_bucket = s3.Bucket('my_bucket_name')

for object_summary in my_bucket.objects.filter(Prefix="dir_name/"):
    print(object_summary.key)

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