如何使用python从json返回/打印特定值

My function returns a string value which I have assigned to variables. I am converting it to json and I want to return the value of 'printer_id'

函数返回赋给变量的字符串值。我将它转换为json我想返回'printer_id'的值

Code :

代码:

import json
def getprinterid():
    s='''
    {
    "printer_config": {
    "printer_id": "AQAAAAFhvL8CXQ",
    "conn_config_url": "https://connectivity",
    "printer_caps_url": "https://deviceconfig",
    "cred_refresh_url": "https://registration"
    }
    ,"cloud_config": {
    "eprint_enabled": true,
    "sips_enabled": true,
    "mobile_print_enabled": true
    }
    }
    '''

    decodedinfo = json.loads(s)
    for x in decodedinfo:
        if x == "printer_config":
            for y in decodedinfo[x]:
                if y == "printer_id":
                    return decodedinfo[x][y]

Added the curly braces , Test runs successfully now , Output:=========================== 1 passed in 0.01 seconds =========================== Process finished with exit code 0

添加了花括号,现在测试运行成功,输出:= = = = = = = = = = = = = = = = = = = = = = = = = = = 1通过0.01秒= = = = = = = = = = = = = = = = = = = = = = = = = = =过程完成退出代码0

1 个解决方案

#1

The decoded json will be a dictionary, you can reference its keys directly:

解码后的json将是一个字典，你可以直接引用它的键:

import json

def getprinterid():
    s = '''
    { 
    "printer_config": {
    "printer_id": "AQAAAAFhvL8CXQ",
    "conn_config_url": "https://connectivity",
    "printer_caps_url": "https://deviceconfig",
    "cred_refresh_url": "https://registration"
    } 
    ,"cloud_config": {
    "eprint_enabled": true,
    "sips_enabled": true,
    "mobile_print_enabled": true
    } 
    } 
    '''

    decoded = json.loads(s)
    return decoded['printer_config']['printer_id']