本文为您介绍火山引擎 E-MapReduce（EMR）Python SDK 的安装流程和查询集群（ListClusters）的样例代码。

1 安装SDK

• 需要安装Python 3 (>3.6)

• 可使用 pip 安装相应的安装包

pip install --user volcengine

2 测试样例代码

1. 测试账号的 AK/SK 配置，在本地的 ~/.volc/config 中添加如下内容：

{
  "ak": "Your AK",
  "sk": "Your SK"
}

2. SDK 中提供了一些简单的样例，比如 volcengine/example/emr/example_list_clusters.py

# coding:utf-8
from __future__ import print_function

import json

from volcengine.emr.EMRService import EMRService

if __name__ == '__main__':
    emr_service = EMRService(region="cn-beijing")

    # call the following methods explicitly if you dont set ak and sk in $HOME/.volc/config
    # emr_service.set_ak(testAk)
    # emr_service.set_sk(testSk)

    params = {}
    resp = emr_service.list_clusters(params)
    print(json.dumps(resp, ensure_ascii=False, sort_keys=True, indent=4, separators=(',', ':')))

3. 直接运行，可得到该账号下的所有集群信息：

/Users/bytedance/volc-sdk-python-internal/volc-sdk-python/venv/bin/python /Users/bytedance/volc-sdk-python-internal/volc-sdk-python/volcengine/example/emr/example_list_clusters.py
{
    "ResponseMetadata":{
        "Action":"ListClusters",
        "Deprecated":false,
        "Error":null,
        "Region":"cn-beijing",
        "RequestId":"202211011500050102080162031C73E93B",
        "Service":"emr",
        "Version":"2021-09-15"
    },
    "Result":{
        "items":[
            {
                "PublicIp":[
                    {
                        "InstanceId":"i-ybzvtid8d0xxxxxxxx",
                        "InstanceName":"emr-3xxd3o882ixxxxxxxx-master-1",
                        "PublicIpAddress":"180.184.69.164"
                    }
                ],
                "accountId":xxxxxxxx,
                "archived":false,
                "authorized":false,
                "buttonStatus":{
                    "cancelPay":"hidden",
                    "clone":"visible",
                    "modifyChargeType":"hidden",
                    "payForCluster":"hidden",
                    "reboot":"hidden",
                    "release":"visible",
                    "renew":"hidden",
                    "scaleOut":"visible"
                },
                "canModifyChargeType":true,
                "clusterTypeName":"Hadoop",
                "coralActivated":false,
                "coralHiveCollectionStatus":"INACTIVE",
                "createTime":"2022-10-17T17:59:18",
                "creatorId":xxxxxxxx,
                "creatorName":"EMR_Dev",
                "deployOption":"ECS",
                "ecsRole":"VEECSforEMRRole",
                "id":xxx,
                "instanceId":"emr-3xxd3o882ixxxxxxxx",
                "isFavorite":true,
                "krbStatus":"DISABLED",
                "launchTime":"2022-10-17T18:07:46",
                "name":"权限xxxxxxxx",
                "orderNumber":"Order7155416xxxxxxxx",
                "payType":"POST",
                "project":"default",
                "renewalStatus":"/",
                "status":"RUNNING",
                "tags":[],
                "type":"Hadoop",
                "updateTime":"2022-10-18T11:07:00",
                "version":"3.0.0"
            },
            {
                "PublicIp":[
                    {
                        "InstanceId":"i-yby7vmesxxxxxxxx",
                        "InstanceName":"emr-3gmooxwp4xxxxxxxx-master-1",
                        "PublicIpAddress":"180.184.96.243"
                    }
                ],
                "accountId":210xxxxxxxx,
                "archived":false,
                "authorized":false,
                "buttonStatus":{
                    "cancelPay":"hidden",
                    "clone":"visible",
                    "modifyChargeType":"hidden",
                    "payForCluster":"hidden",
                    "reboot":"hidden",
                    "release":"visible",
                    "renew":"hidden",
                    "scaleOut":"visible"
                },
                "canModifyChargeType":true,
                "clusterTypeName":"Hadoop",
                "coralActivated":false,
                "coralHiveCollectionStatus":"INACTIVE",
                "createTime":"2022-09-24T16:56:43",
                "creatorId":21xxxxxxxx,
                "creatorName":"EMR_Dev",
                "deployOption":"ECS",
                "ecsRole":"VEECSforEMRRole",
                "id":xxx,
                "instanceId":"emr-3gmooxwpxxxxxxxx",
                "isFavorite":true,
                "krbStatus":"DISABLED",
                "launchTime":"2022-09-24T17:08:45",
                "name":"qa-xxxxxxxx",
                "orderNumber":"Order71468xxxxxxxx",
                "payType":"POST",
                "project":"default",
                "renewalStatus":"/",
                "status":"RUNNING",
                "tags":[],
                "type":"Hadoop",
                "updateTime":"2022-10-27T16:15:10",
                "version":"1.3.1"
            }
        ],
        "pageNum":0,
        "pageSize":10,
        "pages":1,
        "total":8
    }
}

Process finished with exit code 0

4. 上述样例调用了 ListClusters：https://www.volcengine.com/docs/6491/145565
   SDK 与现有 EMR 提供的 OpenAPI 为一对一的对应关系，对其他 OpenAPI 可以相应使用 SDK 调用。