Question

我试图解析一个看起来像这样的json文件：

{ "my_test":[
    { "group_name":"group-A", "results": [
        { "test_name": "test1", "time": "8.556", "status": "pass" },
        { "test_name": "test2", "time": "45.909", "status": "pass" },
        { "test_name": "test3", "time": "9.383", "status": "fail" },
        ...
    }
}

如何按升序打印出测试结果？（按名称或时间）

编辑：输出可以按时间升序排列：

test1 8.556
test3 9.383
test2 45.909

Answer 1

您可以使用内置sorted函数尝试此操作。

from json import loads

json_data = """{
    "my_test": [{
        "group_name": "group-A",
        "results": [{
            "test_name": "test1",
            "time": "8.556",
            "status": "pass"
        }, {
            "test_name": "test2",
            "time": "45.909",
            "status": "pass"
        }, {
            "test_name": "test3",
            "time": "9.383",
            "status": "fail"
        }]
    }]
}"""

data = loads(json_data)

for group in data["my_test"]:
    print group["group_name"]
    sorted_results = sorted(group["results"], key=lambda a: float(a["time"]))
    for result in sorted_results:
        print(result["test_name"] + ": " + result["time"])

Answer 2

你看过这里： How do I sort a list of dictionaries by values of the dictionary in Python?

只需提取您的词典列表即可 list_of_dicts = your_dict_name [＆＃39;结果＆＃39;]

然后

import operator

并按照vemury的说明进行操作。＆＃34; 要按键=＆＃39; name＆＃39;：

对词典列表进行排序

list_of_dicts.sort（键= operator.itemgetter（＆＃39;名称＆＃39;））

按键=＆＃39; age＆＃39;

对字典列表进行排序

list_of_dicts.sort（键= operator.itemgetter（＆＃39;年龄＆＃39;））＆＃34; 由vemury

python-按升序读取JSON

2 个答案: