无法访问dict中具有字符串索引的dict必须是整数

Question

import boto3
client = boto3.client('secretsmanager')

response = client.get_secret_value(SecretId='xxxx')
print('entire response:', response)
print('SecretString:',response['SecretString'])
print('testvalue:'response['SecretString']["testkey"])    

我正在尝试实现aws secretsmanager，需要访问testvalue。你知道吗

entire response:{---, u'SecretString': u'{"testkey":"testvalue","testkey2":"testvalue2"}', ----}
Secretstring:{"testkey":"testvalue","testkey2":"testvalue2"}
Traceback (most recent call last):
  File "secretmanagertest.py", line 7, in <module>
    print('testvalue',response['SecretString']["testkey"])
TypeError: string indices must be integers

当我尝试整数而不是我只得到特定的字符。你知道吗

print(response['SecretString'][0])
{
print(response['SecretString'][1])
"
print(response['SecretString'][2])
t

等等

Answer 1

响应是一个嵌套的JSON文档，而不是一个字典。先用^{}解码：

import json

secret = json.loads(response['SecretString'])
print(secret['testkey'])

演示：

>>> import json
>>> response = {u'SecretString': u'{"testkey":"testvalue","testkey2":"testvalue2"}'}
>>> response['SecretString']
u'{"testkey":"testvalue","testkey2":"testvalue2"}'
>>> json.loads(response['SecretString'])
{u'testkey2': u'testvalue2', u'testkey': u'testvalue'}
>>> json.loads(response['SecretString'])['testkey']
u'testvalue'