访问 JSON 字典中的嵌套 arrays

Question

嘿，我正在尝试在 json 字典内的数组中提取项目，但出现以下错误。 预先感谢您的帮助。

错误：

    for r in data[p]['reportDetails']:
TypeError: unhashable type: 'dict'

代码片段如下：

def XeroExtractReports(cred_fp):
    with open(cred_fp, 'r') as json_file:
        data = json.load(json_file)
        for p in data['credentials']:
            client_id = p['clientId']
            client_secret = p['clientSecret']
            old_refresh_token = p['refreshToken']

            for r in data[p]['reportDetails']:
                get_url = 'https://api.xero.com/api.xro/2.0/' + r['reportName']
                response = requests.get(get_url,
                                       headers = {
                                           'Authorization': 'Bearer ' + new_tokens[0],
                                           'Xero-tenant-id': xero_tenant_id,
                                           'Accept': 'application/json'
                                       })
                json_response = response.json()
                print(json_response)
                print('\n')

JSON 字典：

{
    "credentials": [{
        "clientName": "C1",
        "clientId": "null",
        "clientSecret": "null",
        "redirectUrl": "http://localhost:8080/callback",
        "scopes": "offline_access accounting.transactions.read",
        "reportType": "null",
        "refreshToken": "null",
        "reportDetails": [
            {
                "reportName": "BankTransactions",
                "reportFilename": "/BankTransactions.txt"
            },
            {
                "reportName": "BankTransfers",
                "reportFilename": "/BankTransfers.txt"
            }
        ]
    }]
}

Answer 1

您试图以错误的方式访问值

代替：

for r in data[p]['reportDetails']:
    ...

利用：

for r in p['reportDetails']:
    ...

Answer 2

您不需要使用data[p]来获取reportDetails的值。

当你设置p时你已经得到了 dict

更改第二个循环：

for r in p['reportDetails']