如何使用 python 读取这种对象？答案

【问题标题】：How can I read this kind of object using python?如何使用 python 读取这种对象？
【发布时间】：2021-04-25 23:54:28
【问题描述】：

我试图使用requests 来阅读它，但我不知道如何

我试图寻找解决方案，但我不知道这是什么类型的对象，也不知道如何搜索：

{
  "data": {
    "responsecode": "000",
    "responsemsg": "",
    "datalist": [
      [
        1611192600000,
        null,
        null,
        null,
        null,
        null,
        null
      ],
      [
        1611192600000,
        680.5,
        688.0,
        680.0,
        687.5,
        633200,
        432869750000
      ],
      [
        1611192660000,
        687.5,
        696.0,
        680.5,
        695.5,
        582700,
        402288250000
      ],
      [
        1611192720000,
        695.5,
        699.0,
        695.0,
        698.5,
        839800,
        585819375000
      ],
      [
        1611192780000,
        698.5,
        700.0,
        697.0,
        699.0,
        627100,
        438226800000
      ],
      [
        1611192840000,
        699.0,
        700.0,
        698.0,
        699.5,
        458900,
        320920475000
      ],
      [
        1611192900000,
        700.0,
        700.0,
        699.0,
        699.5,
        231400,
        161913750000
      ],
      [
        1611192960000,
        699.5,
        700.0,
        698.0,
        700.0,
        507800,
        355206850000
      ],
      [
        1611193020000,
        699.5,
        700.0,
        698.5,
        699.0,
        237000,
        165789825000
      ],
      [
        1611193080000,
        699.0,
        700.0,
        698.0,
        699.0,
        310800,
        217270175000
      ],
      [
        1611193140000,
        699.0,
        699.5,
        699.0,
        699.5,
        179900,
        125790125000
      ],
      [
        1611193200000,
        699.0,
        699.5,
        696.152,
        698.0,
        221200,
        154524602000
      ],
      [
        1611193260000,
        698.0,
        699.5,
        698.0,
        699.0,
        226800,
        158496525000
      ],
      [
        1611193320000,
        698.75,
        699.0,
        696.0,
        696.5,
        194000,
        135414500000
      ],
      [
        1611193380000,
        696.5,
        697.5,
        692.5,
        692.5,
        223500,
        155493875000
      ],
      [
        1611193440000,
        692.5,
        694.5,
        690.5,
        690.5,
        299900,
        207736350000
      ],
      [
        1611193500000,
        690.5,
        692.5,
        688.5,
        691.5,
        293600,
        202673350000
      ],
      [
        1611216600000,
        null,
        null,
        null,
        null,
        null,
        null
      ]
    ],
    "start_h": 1,{
  "data": {
    "responsecode": "000",
    "responsemsg": "",
    "datalist": [
      [
        1611192600000,
        null,
        null,
        null,
        null,
        null,
        null
      ],
      [
        1611192600000,
        680.5,
        688.0,
        680.0,
        687.5,
        633200,
        432869750000
      ],
      [
        1611192660000,
        687.5,
        696.0,
        680.5,
        695.5,
        582700,
        402288250000
      ],
      [
        1611192720000,
        695.5,
        699.0,
        695.0,
        698.5,
        839800,
        585819375000
      ],
      [
        1611192780000,
        698.5,
        700.0,
        697.0,
        699.0,
        627100,
        438226800000
      ],
      [
        1611192840000,
        699.0,
        700.0,
        698.0,
        699.5,
        458900,
        320920475000
      ],
      [
        1611192900000,
        700.0,
        700.0,
        699.0,
        699.5,
        231400,
        161913750000
      ],
      [
        1611192960000,
        699.5,
        700.0,
        698.0,
        700.0,
        507800,
        355206850000
      ],
      [
        1611193020000,
        699.5,
        700.0,
        698.5,
        699.0,
        237000,
        165789825000
      ],
      [
        1611193080000,
        699.0,
        700.0,
        698.0,
        699.0,
        310800,
        217270175000
      ],
      [
        1611193140000,
        699.0,
        699.5,
        699.0,
        699.5,
        179900,
        125790125000
      ],
      [
        1611193200000,
        699.0,
        699.5,
        696.152,
        698.0,
        221200,
        154524602000
      ],
      [
        1611193260000,
        698.0,
        699.5,
        698.0,
        699.0,
        226800,
        158496525000
      ],
      [
        1611193320000,
        698.75,
        699.0,
        696.0,
        696.5,
        194000,
        135414500000
      ],
      [
        1611193380000,
        696.5,
        697.5,
        692.5,
        692.5,
        223500,
        155493875000
      ],
      [
        1611193440000,
        692.5,
        694.5,
        690.5,
        690.5,
        299900,
        207736350000
      ],
      [
        1611193500000,
        690.5,
        692.5,
        688.5,
        691.5,
        293600,
        202673350000
      ],
      [
        1611216600000,
        null,
        null,
        null,
        null,
        null,
        null
      ]
    ],
    "start_h": 1,
    "start_m": 30,
    "end_h": 8,
    "end_m": 10
  },
  "qid": "1611236864872"
}
    "start_m": 30,
    "end_h": 8,
    "end_m": 10
  },
  "qid": "1611236864872"
}

我的代码：

import requests

url = "https://www1.hkex.com.hk/hkexwidget/data/getchartdata2?hchart=1&span=0&int=0&ric=0700.HK&token=evLtsLsBNAUVTPxtGqVeGy7qL7eQdVBTrcCFYFcOPYWI05AgQCleAcsg64QJsAax&qid=1611236864872&callback=jQuery351036507339003734307_1611236863411&_=1611236863417"

get = requests.get(url)
json_data = get.json()

print(json_data)

错误：

Traceback (most recent call last):
  File "test.py", line 18, in <module>
    json_data = get.json()
  File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\site-packages\requests\models.py", line 900, in json
    return complexjson.loads(self.text, **kwargs)
  File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\json\__init__.py", line 348, in loads
    return _default_decoder.decode(s)
  File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\json\decoder.py", line 337, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "C:\Users\user\AppData\Local\Programs\Python\Python37\lib\json\decoder.py", line 355, in raw_decode
    raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

【问题讨论】：

看起来它正在返回一段 javascript（带有一些数据的函数调用）。是只需要数据，还是需要函数的输出？
我只需要数据@Blckknght

标签： python json beautifulsoup python-requests

【解决方案1】：

如何获取数据？

您可以使用json.loads() 解析JSON string，但必须稍微使用strip() ;)

data = json.loads(r.text.split('(')[1].split(')')[0])['data']

示例

import requests, json
headers = {"user-agent": "Mozilla/5.0"}
url = 'https://www1.hkex.com.hk/hkexwidget/data/getchartdata2?hchart=1&span=0&int=0&ric=0700.HK&token=evLtsLsBNAUVTPxtGqVeGy7qL7eQdVBTrcCFYFcOPYWI05AgQCleAcsg64QJsAax&qid=1611236864872&callback=jQuery351036507339003734307_1611236863411&_=1611236863417'
r = requests.get(url,headers=headers)

data = json.loads(r.text.split('(')[1].split(')')[0])['data']

data

输出

 {'responsecode': '000',
 'responsemsg': '',
 'datalist': [[1611192600000, None, None, None, None, None, None],
  [1611192600000, 680.5, 688.0, 680.0, 687.5, 633200, 432869750000],
  [1611192660000, 687.5, 696.0, 680.5, 695.5, 582700, 402288250000],
  [1611192720000, 695.5, 699.0, 695.0, 698.5, 839800, 585819375000],
  [1611192780000, 698.5, 700.0, 697.0, 699.0, 627100, 438226800000],
  [1611192840000, 699.0, 700.0, 698.0, 699.5, 458900, 320920475000],
  [1611192900000, 700.0, 700.0, 699.0, 699.5, 231400, 161913750000],
  [1611192960000, 699.5, 700.0, 698.0, 700.0, 507800, 355206850000],
  [1611193020000, 699.5, 700.0, 698.5, 699.0, 237000, 165789825000],
...

【讨论】：