Python：如何列出每个 IBM COS 存储桶的存储桶位置？

Question

我正在使用Python SDK for IBM Cloud Object Storage 并希望遍历所有可见的存储桶并返回它们的位置。我面临的问题是，对于某些存储桶，会返回错误 The specified bucket does not exist.。根据this SO answer it is caused by different storage types.

尽管如此，我该如何处理它并至少获得可访问存储桶的位置？这是粗略的 Python 代码：

cos = ibm_boto3.client('s3',
                    ibm_api_key_id=api_key,
                    ibm_service_instance_id=service_instance_id,
                    ibm_auth_endpoint=auth_endpoint,
                    config=Config(signature_version='oauth'),
                    endpoint_url=service_endpoint)


# Call COS to list current buckets
response = cos.list_buckets()

# Get a list of all bucket names from the response
buckets = [bucket['Name'] for bucket in response['Buckets']]
print(response)

for bucketname in buckets:
   print(bucketname, cos.get_bucket_location(Bucket=bucketname)['LocationConstraint'])

Answer 1

我现在采用了这种解决方法：

def locations(buckets):
   locs={}
   for b in buckets:
      try: 
         locs[b]=cos.get_bucket_location(Bucket=b)['LocationConstraint']
      except: 
         locs[b]=None
         pass
   return locs

它尝试获取位置。如果失败，则分配 None，当转换为 JSON 时，它会很好地转换为 null。