JSON对象未解码

Question

我正在使用openstack，我收到 nova list 的回复，该回复应该是 json 但是当我尝试时：

  nova list | python -m json.tool

它返回：

  No JSON object could be decoded

我使用http://jsonlint.com来验证响应并且它是有效的。我使用devstack来部署openstack，我需要解析响应，但它不起作用。有帮助吗？提前致谢。 这是回应：

{
"servers": [
    {
        "status": "ACTIVE",
        "updated": "2014-01-17T08:08:30Z",
        "hostId": "bb9ca1b4e919712577cfb6d2ac5c6892e7faf4ee46a8a45322fc507f",
        "OS-EXT-SRV-ATTR:host": "muawia-Inspiron-N4050",
        "addresses": {
            "public": [
                {
                    "OS-EXT-IPS-MAC:mac_addr": "fa:16:3e:18:07:07",
                    "version": 4,
                    "addr": "192.168.1.194",
                    "OS-EXT-IPS:type": "fixed"
                }
            ]
        },
        "links": [
            {
                "href": "http://192.168.1.206:8774/v2/699eb4f6d2834bff80f28f40c0a08eb0/servers/202b6645-2ff9-4d2d-aacd-9a57566011e0",
                "rel": "self"
            },
            {
                "href": "http://192.168.1.206:8774/699eb4f6d2834bff80f28f40c0a08eb0/servers/202b6645-2ff9-4d2d-aacd-9a57566011e0",
                "rel": "bookmark"
            }
        ],
        "key_name": "newkey",
        "image": {
            "id": "e7c132bc-5d7b-4e77-b622-e146b69fdf9d",
            "links": [
                {
                    "href": "http://192.168.1.206:8774/699eb4f6d2834bff80f28f40c0a08eb0/images/e7c132bc-5d7b-4e77-b622-e146b69fdf9d",
                    "rel": "bookmark"
                }
            ]
        },
        "OS-EXT-STS:task_state": null,
        "OS-EXT-STS:vm_state": "active",
        "OS-EXT-SRV-ATTR:instance_name": "instance-00000001",
        "OS-SRV-USG:launched_at": "2014-01-17T08:08:30.000000",
        "OS-EXT-SRV-ATTR:hypervisor_hostname": "muawia-Inspiron-N4050",
        "flavor": {
            "id": "42",
            "links": [
                {
                    "href": "http://192.168.1.206:8774/699eb4f6d2834bff80f28f40c0a08eb0/flavors/42",
                    "rel": "bookmark"
                }
            ]
        },
        "id": "202b6645-2ff9-4d2d-aacd-9a57566011e0",
        "security_groups": [
            {
                "name": "default"
            }
        ],
        "OS-SRV-USG:terminated_at": null,
        "OS-EXT-AZ:availability_zone": "nova",
        "user_id": "75445728f6bc441b82ee057e55d49468",
        "name": "inst1",
        "created": "2014-01-17T08:06:24Z",
        "tenant_id": "699eb4f6d2834bff80f28f40c0a08eb0",
        "OS-DCF:diskConfig": "MANUAL",
        "os-extended-volumes:volumes_attached": [],
        "accessIPv4": "",
        "accessIPv6": "",
        "progress": 0,
        "OS-EXT-STS:power_state": 1,
        "config_drive": "",
        "metadata": {}
    }
]
}