python中嵌套字典的排序列表

Question

我有点像

[
    {
        "key": { "subkey1":1, "subkey2":"a"  }
    },
    {
        "key": { "subkey1":10, "subkey2":"b" }
    },
    {
        "key": { "subkey1":5, "subkey2":"c" }
    }
]

需要：

[
    {
        "key": { "subkey1":10, "subkey2":"b" }
    },
    {
        "key": { "subkey1":5, "subkey2":"c" }
    },
    {
        "key": { "subkey1":1, "subkey2":"a" }
    }
]

非常感谢！

编辑：我想按子关键字1排序，以前不清楚。