键值具有字符串值的数据，但值字符串作为需要更改的多个数据

Question

这是 AWS 备份还原元数据

我有以下键值对数据，其中值具有整个字符串，其中包含多个需要更改的数据，例如 false 到 true 或 true 到 false。

NetworkInterfaces 键的字符串值具有多个键值对，我无法更改，因为它是一个完整的字符串。

'NetworkInterfaces': '[{
            "AssociatePublicIpAddress":false,
            "DeleteOnTermination":false,
            "Description":"Primary network interface",
            "DeviceIndex":0,
            "Groups":["sg-xyz"],
            "Ipv6AddressCount":0,
            "Ipv6Addresses":[],
            "NetworkInterfaceId":"eni-xyz",
            "PrivateIpAddress":"0.0.0.0",
            "PrivateIpAddresses":[{"Primary":false,"PrivateIpAddress":"0.0.0.0"}],
            "SecondaryPrivateIpAddressCount":0,
            "SubnetId":"subnet-xyz",
            "InterfaceType":"interface"
                    }]'

Answer 1

您最好的选择仍然是 json.loads() 将其转换为字典。 但是，上面的字符串不是有效的 json 格式，下面是 ...

{"NetworkInterfaces": [{ "AssociatePublicIpAddress":false, "DeleteOnTermination":false, "Description":"Primary network interface", "DeviceIndex":0, "Groups":["sg-xyz"], "Ipv6AddressCount":0, "Ipv6Addresses":[], "NetworkInterfaceId":"eni-xyz", "PrivateIpAddress":"0.0.0.0", "PrivateIpAddresses":[{"Primary":false,"PrivateIpAddress":"0.0.0.0"}], "SecondaryPrivateIpAddressCount":0, "SubnetId":"subnet-xyz", "InterfaceType":"interface" }]}

建议使用python re模块将字符串转换为类似的东西，以后可以被json模块使用

添加示例代码以清理数据

str = """
'NetworkInterfaces':'[{"AssociatePublicIpAddress":false,"DeleteOnTermination":false,"Description":"Primary network interface","DeviceIndex":0,"Groups":["sg-xyz"],"Ipv6AddressCount":0,"Ipv6Addresses":[],"NetworkInterfaceId":"eni-xyz","PrivateIpAddress":"0.0.0.0","PrivateIpAddresses":[{"Primary":false,"PrivateIpAddress":"0.0.0.0"}],"SecondaryPrivateIpAddressCount":0,"SubnetId":"subnet-xyz","InterfaceType":"interface"}]'
"""


import re
str = re.sub('\'\[', '[', str)
str = re.sub('\]\'', ']', str)
str = re.sub('\'', '\"', str)
str = re.sub('^\n', '', str)
str = re.sub('\n$', '', str)
str = "{" + str + "}"

import json
d = json.loads(str)
print(d["NetworkInterfaces"][0]["AssociatePublicIpAddress"]) # False