在字典列表中查找项目
[英]Find item in list of dictionaries
问题描述
In the following data structure:
在以下数据结构中：
[
{
"id": 28,
"country": "Brazil",
"country_code": "BR",
"country_population": 201103330,
"province": "",
"last_updated": "2020-04-03T01:40:00.724616Z",
"coordinates": {
"latitude": "-14.235",
"longitude": "-51.9253"
},
"latest": {
"confirmed": 8044,
"deaths": 324,
"recovered": 0
},
"timelines": {
"confirmed": {
"latest": 8044,
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
},
"deaths": {
"latest": 324,
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
},
"recovered": {
"latest": 0,
"timeline": {}
}
}
}
]
How do I get "timeline" items, from "timelines" key?如何从"timelines"键获取"timeline"项目？
3 个解决方案
解决方案1
1 2020-04-03 02:20:33
You should provide at least a piece of code of what you tried for now..您应该至少提供一段您现在尝试过的代码..
d = [
{
"id": 28,
"country": "Brazil",
"country_code": "BR",
"country_population": 201103330,
"province": "",
"last_updated": "2020-04-03T01:40:00.724616Z",
"coordinates": {
"latitude": "-14.235",
"longitude": "-51.9253"
},
"latest": {
"confirmed": 8044,
"deaths": 324,
"recovered": 0
},
"timelines": {
"confirmed": {
"latest": 8044,
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
},
"deaths": {
"latest": 324,
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
},
"recovered": {
"latest": 0,
"timeline": {}
}
}
}
]
print(d[0]["timelines"]["confirmed"]["timeline"])
By the way:顺便一提：
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
Looks weird for me does timeline should be an array instead of a object ?对我来说看起来很奇怪， timeline应该是一个array而不是一个object吗？
解决方案2
0 2020-04-03 02:22:17
print([[i, data[0]['timelines'][i]['timeline']] for i in data[0]['timelines']])
解决方案3
0 2020-04-03 02:30:09
Your JSON does indeed have an issue您的 JSON 确实有问题
"JSONDecodeError: Expecting property name enclosed in double quotes: line 24 column 9 (char 558)" “JSONDecodeError：期望用双引号括起来的属性名称：第 24 行第 9 列（字符 558）”
Which in turn is your timeline as posted above这又是您上面发布的时间线
"timeline": { "2020-01-22T00:00:00Z": 0, "2020-01-23T00:00:00Z": 0, <---- "2020-01-24T00:00:00Z": 0, “时间线”：{“2020-01-22T00:00:00Z”：0，“2020-01-23T00:00:00Z”：0，<----“2020-01-24T00:00:00Z”： 0,
JSONs have many formatting issues, and you may have to develop your own method of reading them if they are out of the general norm, I've had to do this a few times. JSON 有许多格式问题，如果它们超出一般规范，您可能必须开发自己的读取方法，我不得不这样做几次。
import json
x = """[{
"id": 28,
"country": "Brazil",
"country_code": "BR",
"country_population": 201103330,
"province": "",
"last_updated": "2020-04-03T01:40:00.724616Z",
"coordinates": {
"latitude": "-14.235",
"longitude": "-51.9253"
},
"latest": {
"confirmed": 8044,
"deaths": 324,
"recovered": 0
},
"timelines": {
"confirmed": {
"latest": 8044,
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
},
"deaths": {
"latest": 324,
"timeline": {
"2020-01-22T00:00:00Z": 0,
"2020-01-23T00:00:00Z": 0,
"2020-01-24T00:00:00Z": 0,
}
},
"recovered": {
"latest": 0,
"timeline": {}
}
}
}]"""
y = json.loads(x)
print(y)
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