JSON数据中的访问字段 [英] Access Field in JSON Data
本文介绍了JSON数据中的访问字段的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有以下JSON格式的API响应.如果要提取诸如地理编码之类的字段,我该怎么做?将响应放入JSON是否多余?我收到一个错误,说列表索引必须是整数,而不是str.预先感谢,对此不陌生.
I have an API response in the following JSON format. If I want to extract a field, such as geocode, how would I do so? Is it redundant to put the response in JSON? I get an error saying the list indices must be integers, not str. Thanks in advance, new to this.
我尝试过:
import requests
import json
response = requests.get("https://api.weather.gov/alerts/active")
data = response.json()
json.loads(data['features']['id'][0]['properties'][0]['geocode'][0])
以下是JSON数据:
{
"@context": [
"https://raw.githubusercontent.com/geojson/geojson-ld/master/contexts/geojson-base.jsonld",
{
"wx": "https://api.weather.gov/ontology#",
"@vocab": "https://api.weather.gov/ontology#"
}
],
"type": "FeatureCollection",
"features": [
{
"id": "https://api.weather.gov/alerts/NWS-IDP-PROD-2791383-2596094",
"properties": {
"@id": "https://api.weather.gov/alerts/NWS-IDP-PROD-2791383-2596094",
"id": "NWS-IDP-PROD-2791383-2596094",
"geocode": {
"UGC": [
"PZZ560"
],
"SAME": [
"057560"
]
},
"references": [
"https://api.weather.gov/alerts/NWS-IDP-PROD-2790941-2595876"
],
"status": "Actual",
"parameters": {
"NWSheadline": [
"SMALL CRAFT ADVISORY IN EFFECT"
],
"eventEndingTime": [
"2018-04-26T21:00:00-07:00"
]
}
}
},
],
"title": "Current watches, warnings, and advisories"
}
推荐答案
您在此处使用的层次结构中存在错误:
Error is in the hierarchy that you use here:
json.loads(data['features']['id'][0]['properties'][0]['geocode'][0])
正确的是:
json.loads(data['features'][0]['properties']['geocode'])
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