[英]Python: Parsing a single-line JSON file
I'm trying to parse a large one-line JSON file and can't seem to figure it out. 我正在尝试解析一个大的单行JSON文件,似乎无法弄清楚。 I've looked for resources on here and elsewhere, but most of what I see tells you to parse everything line-by-line.
我一直在这里和其他地方寻找资源,但是我看到的大部分内容都告诉您逐行解析所有内容。 Since I'm working with one really long line, what's the best way to parse this with python?
由于我正在处理很长的一行,因此用python解析这条线的最佳方法是什么?
Specifically, I'm looking for one particular value that's in a nested dictionary in the JSON data. 具体来说,我正在寻找JSON数据的嵌套字典中的一个特定值。 The data looks like this (after running it through a formatter):
数据如下所示(通过格式化程序运行之后):
{
"type":"FeatureCollection",
"features":[
{
"type":"Feature",
"id":"wells.529038",
"geometry":null,
"properties":{
"api":"4245180382"
}
},
{
"type":"Feature",
"id":"wells.481699",
"geometry":null,
"properties":{
"api":"4237182573"
}
}
]
}
I want to extract all the api values, but I'm having trouble wrapping my head around how to do that given the multi-nested structure and because the file is huge and only one line. 我想提取所有的api值,但是在给定多嵌套结构的情况下,由于文件很大且只有一行,因此我难以解决该问题。 What the best approach here?
这里最好的方法是什么?
Use the standard library : 使用标准库:
json_data = json.loads(your_line)
# Usage exemple
for feature in json_data['features']:
print feature['id']
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