解析嵌套的JSON响应Python [英] Parsing nested JSON response Python

问题描述

整个周末我都被困住了，有人可以帮我吗?

I've been stuck on this all weekend, can anybody help me out please?

我正在尝试解析嵌套的JSON响应.我似乎无法返回我需要的值，每当我尝试解析它时，我都会得到关于字符串索引必须为整数"的错误.

I'm trying to parse a nested JSON response. I cannot seem to return the values I need, I just get errors about "string indices must be integers" whenever I try to parse it...

我想要实现的是:对于JSON中的每个对象，请提取available_projects，然后从每个对象中提取available_models.例如，第一个应该是:model001，model_20171004-090552.

What I am trying to achieve is: for each object in the JSON, extract the available_projects, and then the available_models from each. For example, the first one should be: model001, model_20171004-090552.

示例JSON响应:

{
    "available_projects": {
        "model001": {
            "available_models": [
                "model_20171004-090552"
            ],
            "status": "ready"
        },
        "model002": {
            "available_models": [
                "model_20171013-143108"
            ],
            "status": "ready"
        },
        "model002b": {
            "available_models": [
                "model_20171013-151458"
            ],
            "status": "ready"
        }
}

我的代码:

myText = requests.get('http://localhost:5000/status')
jsonresponse = json.loads(myText.text)


for element in jsonresponse[u'available_projects']:
    for AM in element[u'available_models']: ## this gives me the errors..
        print AM

如果我只是执行针对jsonresponse [u'available_projects']中的元素:print元素"的语句，它将正确打印出available_projects列表.我该如何使用该输出来更深入地研究JSON?

if I just do a "for element in jsonresponse[u'available_projects']: print element" statement, it correctly prints the available_projects list. How can I use that output to delve one level deeper into the JSON?

任何帮助，或者代码片段都很棒-谢谢！！

Any help, or a code snippet would be amazing - thank you!!

推荐答案

您可以使用 键方法 ，以获取键，然后进行迭代以获取所需的值.

You can use the keys method in the dictionary object to fetch the keys and then iterate over to get the required value.

示例:

d = {
    "available_projects": {
        "model001": {
            "available_models": [
                "model_20171004-090552"
            ],
            "status": "ready"
        },
        "model002": {
            "available_models": [
                "model_20171013-143108"
            ],
            "status": "ready"
        },
        "model002b": {
            "available_models": [
                "model_20171013-151458"
            ],
            "status": "ready"
        }
    }
}

for i in d["available_projects"].keys():
    print i, "=" , d["available_projects"][i]['available_models'][0]

输出:

model001 = model_20171004-090552
model002b = model_20171013-151458
model002 = model_20171013-143108

这篇关于解析嵌套的JSON响应Python的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！