Python- Elasticsearch的自动批量请求不工作“必须以换行符终止”

from elasticsearch import Elasticsearch

# 创建Elasticsearch客户端
es = Elasticsearch()

# 批量操作请求体
bulk_request = [
    { "index" : { "_index" : "my_index", "_id" : "1" } },
    { "field1" : "value1" },
    { "update" : { "_index" : "my_index", "_id" : "2" } },
    { "doc" : { "field2" : "value2" } },
    { "delete" : { "_index" : "my_index", "_id" : "3" } },
]

# 构建批量请求
request_body = '\n'.join([f'{json.dumps(action)}' for action in bulk_request]) + '\n'

# 执行批量请求
response = es.bulk(body=request_body, index="my_index")

# 处理响应结果
if response["errors"]:
    for item in response["items"]:
        if "error" in item["index"]:
            print(f"索引操作失败：{item['index']['error']}")
        elif "error" in item["update"]:
            print(f"更新操作失败：{item['update']['error']}")
        elif "error" in item["delete"]:
            print(f"删除操作失败：{item['delete']['error']}")
else:
    print("批量请求成功")