相关疑难解决方法(0)

我正在使用boto3从s3存储桶中获取文件.我需要类似的功能aws s3 sync

我目前的代码是

#!/usr/bin/python
import boto3
s3=boto3.client('s3')
list=s3.list_objects(Bucket='my_bucket_name')['Contents']
for key in list:
    s3.download_file('my_bucket_name', key['Key'], key['Key'])

只要存储桶只有文件,这工作正常.如果存储桶中存在文件夹,则会抛出错误

Traceback (most recent call last):
  File "./test", line 6, in <module>
    s3.download_file('my_bucket_name', key['Key'], key['Key'])
  File "/usr/local/lib/python2.7/dist-packages/boto3/s3/inject.py", line 58, in download_file
    extra_args=ExtraArgs, callback=Callback)
  File "/usr/local/lib/python2.7/dist-packages/boto3/s3/transfer.py", line 651, in download_file
    extra_args, callback)
  File "/usr/local/lib/python2.7/dist-packages/boto3/s3/transfer.py", line 666, in _download_file
    self._get_object(bucket, key, filename, extra_args, callback)
  File "/usr/local/lib/python2.7/dist-packages/boto3/s3/transfer.py", line 690, in _get_object
    extra_args, callback)
  File "/usr/local/lib/python2.7/dist-packages/boto3/s3/transfer.py", line 707, in _do_get_object
    with self._osutil.open(filename, 'wb') as f:
  File "/usr/local/lib/python2.7/dist-packages/boto3/s3/transfer.py", …

I have a bucket in s3 called "sample-data". Inside the Bucket I have folders labelled "A" to "Z".

Inside each alphabetical folder there are more files and folders. What is the fastest way to download the alphabetical folder and all it's content?

For example --> sample-data/a/foo.txt,more_files/foo1.txt

In the above example the bucket sample-data contains an folder called a which contains foo.txt and a folder called more_files which contains foo1.txt

I know how to download a single file. For instance if …