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，并且想遍历所有可见的存储桶并返回其位置。我面临的问题是，对于某些存储桶，将返回错误The specified bucket does not exist.。根据{{​​3}}。

我该如何处理它，至少要找到可访问的存储桶的位置？这是粗糙的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

我暂时采用此解决方法：

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

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