如何使用Amazon S3 SDK更新元数据

import boto3

# 创建S3客户端
s3 = boto3.client('s3')

# 指定源对象和目标对象
source_bucket = 'my-source-bucket'
source_key = 'my-object-key'
destination_bucket = 'my-destination-bucket'
destination_key = 'my-new-object-key'

# 复制对象并更新元数据
copy_source = {'Bucket': source_bucket, 'Key': source_key}
s3.copy_object(CopySource=copy_source, Bucket=destination_bucket, Key=destination_key, Metadata={'NewMetadata': 'NewValue'})

# 删除原始对象
s3.delete_object(Bucket=source_bucket, Key=source_key)