如何在python中遍历block_blob_service.copy_blob

from azure.storage.blob import BlockBlobService

# 创建Blob服务
block_blob_service = BlockBlobService(account_name='<你的存储账户名称>', account_key='<你的存储账户密钥>')

# 源Blob的容器和Blob名称
source_container_name = '<源Blob所在的容器名称>'
source_blob_name = '<源Blob的名称>'

# 目标Blob的容器和Blob名称
destination_container_name = '<目标Blob所在的容器名称>'
destination_blob_name = '<目标Blob的名称>'

# 设置访问源Blob所在容器的权限
block_blob_service.set_container_acl(source_container_name, public_access=None)

# 设置访问目标Blob所在容器的权限
block_blob_service.set_container_acl(destination_container_name, public_access=None)

# 复制Blob
block_blob_service.copy_blob(destination_container_name, destination_blob_name, 
                             block_blob_service.make_blob_url(source_container_name, source_blob_name))

# 遍历复制进度
copy_status = block_blob_service.get_blob_properties(destination_container_name, destination_blob_name).copy.status
while copy_status != 'success':
    copy_status = block_blob_service.get_blob_properties(destination_container_name, destination_blob_name).copy.status
    print("复制进度: {}%".format(block_blob_service.get_blob_properties(destination_container_name, destination_blob_name).copy.progress))

print("复制完成！")