Question

首先，我不完全了解JSON的术语，所以请耐心等待。

我的学校使用名为PowerSchool的成绩簿系统。作为一个辅助项目，我试图在我的Mac上进行启动栏操作，这样我就可以快速检查成绩。我正在使用和服从PowerSchool获得成绩。它为我提供了一个JSON输出，Python可以抓取并输出。目前，我试图能够列出所有课程。相反，它列出了第一个。这是我从和服获得的JSON的编辑版本。（我编辑了个人信息，只在编辑中放置了3个类，这可能不是正确的JSON）

name": "Power School",
  "count": 10,
  "frequency": "Every 15 mins",
  "version": 1,
  "newdata": true,
  "lastrunstatus": "success",
  "thisversionstatus": "success",
  "nextrun": "Wed Nov 04 2015 14:02:11 GMT+0000 (UTC)",
  "thisversionrun": "Wed Nov 04 2015 13:47:11 GMT+0000 (UTC)",
  "results": {
    "collection1": [
      {
      {
        "property2": "Class 1",
        "Q1 Grade": {
          "href": "https://powerschool.url",
          "text": "A+\n100"
        },
        "Q2 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Q3 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Q4 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Y1 Grade": {
          "href": "https://powerschool.url",
          "text": "A+\n100"
        },
        "Absences": "0",
        "Tardies": "0",
        "Period": "1-1(A-F)",
        "index": 1,
        "url": "https://powerschool.url/home.html"
      },  
      {
        "property2": "Class 2",
        "Q1 Grade": {
          "href": "https://powerschool.url",
          "text": "A+\n100"
        },
        "Q2 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Q3 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Q4 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Y1 Grade": {
          "href": "https://powerschool.url",
          "text": "A+\n100"
        },
        "Absences": "0",
        "Tardies": "0",
        "Period": "1-1(A-F)",
        "index": 2,
        "url": "https://powerschool.url/home.html"
      },
      {
        "property2": "Class 2",
        "Q1 Grade": {
          "href": "https://powerschool.url",
          "text": "A+\n100"
        },
        "Q2 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Q3 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Q4 Grade": {
          "href": "https://powerschool.url",
          "text": "--"
        },
        "Y1 Grade": {
          "href": "https://powerschool.url",
          "text": "A+\n100"
        },
        "Absences": "0",
        "Tardies": "0",
        "Period": "2-2(A-F)",
        "index": 3,
        "url": "https://powerschool.url/home.html"
      }
    ]
  }
}

至于我的python脚本（再次，删除了API和Auth键）

import json
import urllib2
request = urllib2.Request("https://www.kimonolabs.com/api/APIKEY", headers={"authorization" : "auth code"})
contents = urllib2.urlopen(request).read()
parsed_json = json.loads(contents)
ourResult = parsed_json['results']['collection1'][0]
print ourResult['property2']

运行此结果会产生

的输出

Class 1

我希望输出

Class 1
Class 2
Class 3

我错过了什么？我假设它是基本的东西。

Answer 1

您将'collection1'的所有项目放入ourResult。创建一个for循环，迭代myResult中的每个元素，并使用键'property2'

搜索值

Answer 2

您只需阅读一个项目而不是数组。试试这个：

  ourResult = parsed_json['results']['collection1']
  for item in ourResult:
    print item['property2']

在Python中使用多个元素解析JSON

2 个答案: