python 命令行读取json文件

macname@bogon testenv3.7 % cat file.json 
{
    "code": 200,
    "msg": "请求成功",
    "data": {
        "username": "abc",
        "mobile": "18611751121"
    },
    "task":[{
        "username": "abc1",
        "mobile": "18611751121"
    },
    {
        "username": "abc2",
        "mobile": "18611751121"
    }]
}
macname@bogon testenv3.7 % 
macname@bogon testenv3.7 % python3 -m json.tool file.json
{
    "code": 200,
    "msg": "\u8bf7\u6c42\u6210\u529f",
    "data": {
        "username": "abc",
        "mobile": "18611751121"
    },
    "task": [
        {
            "username": "abc1",
            "mobile": "18611751121"
        },
        {
            "username": "abc2",
            "mobile": "18611751121"
        }
    ]
}