Python Tuple到JSON输出

data = ((1, '2011-01-01'), (2, '2011-01-02'), (1, '2011-01-15'), (3, '2011-02-01'))

进入这个：

{
    "item": [
     "1",
     "2",
     "1",
     "3",
    ],
    "settings": {
     "axisx": [
      "2011-01-01",
      "2011-01-02",
      "2011-01-15",
      "2011-02-01"
     ],
     "axisy": [
      "0",
      "100"
     ],
     "colour": "ff9900"
     }
}

或者更确切地说,是否有任何有用的资源我可以阅读,以便我能够生成该JSON输出？所以我知道我需要将我的数据“转换”为正确的数据结构.之后就像json.dumps一样容易(数据)

谢谢

然后使用以下内容转换数据：

somedict = { "item"     : [ x[0] for x in data ],
             "settings" : { "axisx" : [ x[1] for x in data ],
                            "axisy" : [ 0, 100],
                            "colour" : "ff9900" }
           }

并致电：

print json.dumps(somedict)