在同一python代码中使用变量键值对解析不同的json文件

我有一个文件夹，里面有许多

json

文件，如下所示

sample1.json

：

[{
    "TimeField": "UTC",
    "Subject": "",
    "Severity": "Medium",
},
{
    "TimeField": "MDT",
    "Subject": "",
    "Severity": "Medium",
}]

[{
    "TimeField": "UTC",
    "Subject": "",
    "Severity": "low",
    "Comment" : ""
},
{
    "TimeField": "MDT",
    "Subject": "",
    "Severity": "low",
    "Comment" : ""
}]

CRITICAL - Exception Line no:  : 'Comments' 
How to parse json files with variable number of key value pair

sample2.json

：

[{
    "TimeField": "UTC",
    "Subject": "",
    "Severity": "Medium",
},
{
    "TimeField": "MDT",
    "Subject": "",
    "Severity": "Medium",
}]

[{
    "TimeField": "UTC",
    "Subject": "",
    "Severity": "low",
    "Comment" : ""
},
{
    "TimeField": "MDT",
    "Subject": "",
    "Severity": "low",
    "Comment" : ""
}]

CRITICAL - Exception Line no:  : 'Comments' 
How to parse json files with variable number of key value pair

我的代码：

def get_parameters(obj):

        timefield = obj['TimeField']
        subject = obj['Subject']
        severity = obj['Severity']
        comment = obj['Comment']
        return(timefield ,subject ,severity ,comment )

由于注释不在

sample1.json中而获取异常：

[{
    "TimeField": "UTC",
    "Subject": "",
    "Severity": "Medium",
},
{
    "TimeField": "MDT",
    "Subject": "",
    "Severity": "Medium",
}]

[{
    "TimeField": "UTC",
    "Subject": "",
    "Severity": "low",
    "Comment" : ""
},
{
    "TimeField": "MDT",
    "Subject": "",
    "Severity": "low",
    "Comment" : ""
}]

CRITICAL - Exception Line no:  : 'Comments' 
How to parse json files with variable number of key value pair

您的
json_索引中的对象是标准的
dict
s，因此您可以只用于所有可选键

def get_参数（obj）：
timefield=obj['timefield']
subject=obj['subject']
严重性=obj[“严重性”]
comment=obj.get（'comment'）
返回（时间域、主题、严重性、注释）