python替换json文件中的值
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时间:2020-08-19 17:01:55 来源:igfitidea点击:
python replace value in json file
提问by xergiopd
I have a json file named test.json and I need a python function for substitute some specific values in the same file. The json file is:
我有一个名为 test.json 的 json 文件,我需要一个 python 函数来替换同一文件中的某些特定值。json文件是:
[
{
"ParameterKey" : "HOME",
"ParameterValue" : "/home"
},
{
"ParameterKey" : "Shell",
"ParameterValue" : "/bin/sh"
},
{
"ParameterKey": "EnvHost",
"ParameterValue": "localhost"
},
{
"ParameterKey": "EnvUser",
"ParameterValue": "stall"
},
{
"ParameterKey": "Type",
"ParameterValue": "super"
}
]
I need to replace only "Shell" and "Type" to other values but I'm struggling to do so.
我只需要将“Shell”和“Type”替换为其他值,但我正在努力这样做。
回答by viveksyngh
You can do something like this.
你可以做这样的事情。
import json
with open('/path/to/josn_file.json', 'r') as file:
json_data = json.load(file)
for item in json_data:
if item['ParameterKey'] in ["Shell","Type"]:
item['ParameterKey'] = "new value"
with open('/path/to/josn_file.json', 'w') as file:
json.dump(json_data, file, indent=2)