Python根据字典中的条件查找obj值

Question

下面是来自python请求的json数据：

{
    "results": [
        {
            "name": "virtual-machine-1",
            "guest": "Microsoft Windows Server 2016 (64-bit)",
            "status": "green",
            "id": "567890-004",
        },
        {
            "name": "virtual-machine-2",
            "guest": "CoreOS Linux (64-bit)",
            "status": "green",
            "id": "567890-005",
        }
    ]
}

如何根据“名称”值获得所有字典的"id“值。

我已经看到了基于键找到值的解决方案，而不是在同一字典中根据条件找到值，并将其迭代到多个字典中。感谢你的帮助。

Answer 1

这是在重新输入身份：

>>> {result['id']: result['name'] for result in data['results']}
{'567890-004': 'virtual-machine-1', '567890-005': 'virtual-machine-2'}

这种技术被称为词典理解。

Answer 2

d = {result['name']: result['id'] for result in request.dict['results'] if 'name' in result}
# request.dict is the name of the object that contains the list "results"

Answer 3

将您的json转换为字典列表。那就用短手来陈述吧。

results = [
{ "name": "virtual-machine-1",
            "guest": "Microsoft Windows Server 2016 (64-bit)",
            "status": "green",
            "id": "567890-004"},
{"name": "virtual-machine-2",
            "guest": "CoreOS Linux (64-bit)",
            "status": "green",
            "id": "567890-005"}
]

id = [x['id'] for x in results if x['name'] == "virtual-machine-1"]
print id    # prints 567890-004

id = [x['id'] for x in results if x['name'] == "virtual-machine-2"]
print id    # prints 567890-005