有没有办法用 Python 过滤 JSON 数据

Is there a way to filter JSON data with Python

我正在使用 PRTG HTTP API 来提取传感器信息,我的目标是过滤掉具有此值的传感器

<status>Down</status>

到目前为止,我已经在 Stack 和谷歌搜索中阅读了很多参考资料,但我无法应用 none 这些解决方案,因此粘贴我尝试过的所有代码都是徒劳的,但是对我来说更有意义的是这个

JSON的结构是这样的

{
  "prtg-version": "19.1.49.1966",
  "treesize": 17701,
  "status%3Ddown": [
    {
      "group": "SOME GROUP",
      "device": "SOME SWITCH",
      "sensor": "Uptime",
      "status": "Down",
      "status_raw": 5
    },
    {
      "group": "SOME GROUP",
      "device": "SOME SWITCH",
      "sensor": "System Health Memory",
      "status": "Up",
      "status_raw": 3
    },
  ]
}

现在是代码

import json
import requests
url = "https://prtg.c3ntro.com/api/table.jsoncontent=status=down&username=usr&passhash=hash&count=100"
response = requests.get(url)
data = response.json()

d = data
result_dict = [d for d in data['status%3Ddown'] if d['status'] == 'Down']
print(result_dict)


#Code has been fixed and now it works

现在只打印向下状态传感器

d = data["prtg-version", "treesize", "status%3Ddown"]

该行代码试图访问具有文字 three-part 键 "prtg-version", "treesize", "status%3Ddown" 的元素,这当然不存在。

看来您只想要这个:

d = data["status%3Ddown"]

列表理解应该有效:

[d for d in data['status%3Ddown'] if d['status'] == 'Down']

returns "status%3Ddown" 列表中包含 "status": "Down":

的所有条目
[{'device': 'SOME SWITCH',
  'group': 'SOME GROUP',
  'sensor': 'Uptime',
  'status': 'Down',
  'status_raw': 5}]