boto3 を追加して、直接 S3 などへアクセス可能にしたテスト版。

LocalStack 相手に動作することを確認しています。

~$ ipython3 
Python 3.4.3 (default, Nov 28 2017, 17:03:36) 
Type "copyright", "credits" or "license" for more information.

IPython 1.2.1 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: import boto3

In [2]: client=boto3.client('s3', endpoint_url='http://192.168.103.164:4572', aws_access_key_id='hogehoge', aws_secret_access_key='fugafuga', region_name='us-east-1')

In [3]: client.list_buckets()
Out[3]: 
{'Buckets': [{'CreationDate': datetime.datetime(2006, 2, 3, 16, 45, 9, tzinfo=tzutc()),
   'Name': 'from_MAE3xx'}],
 'Owner': {'DisplayName': 'webfile', 'ID': 'bcaf1ffd86f41161ca5fb16fd081034f'},
 'ResponseMetadata': {'HTTPHeaders': {'access-control-allow-headers': 'authorization,content-type,content-md5,x-amz-content-sha256,x-amz-date,x-amz-security-token,x-amz-user-agent',
   'access-control-allow-methods': 'HEAD,GET,PUT,POST,DELETE,OPTIONS,PATCH',
   'access-control-allow-origin': '*',
   'content-length': '353',
   'content-type': 'text/html; charset=utf-8',
   'date': 'Thu, 06 Sep 2018 06:03:42 GMT, Thu, 06 Sep 2018 06:03:42 GMT',
   'server': 'BaseHTTP/0.3 Python/2.7.13, Werkzeug/0.12.2 Python/2.7.13'},
  'HTTPStatusCode': 200,
  'RetryAttempts': 0}}