[python] json 처리

python에서 json 처리 예제. 

>>> import json

>>> json_string = '{"master":"1.1.1.1:1111", "slave":["2.2.2.2:2222", "3.3.3.3:3333"]}'

>>> decoded = json.loads(json_string)

>>> print json.dumps(decoded, indent=2)

{

  "slave": [

    "2.2.2.2:2222",

    "3.3.3.3:3333"

  ],

  "master": "1.1.1.1:1111"

}

>>> print json.dumps(decoded, indent=2, sort_keys=True)

{

  "master": "1.1.1.1:1111",

  "slave": [

    "2.2.2.2:2222",

    "3.3.3.3:3333"

  ]

}

>>> print decoded['master']

1.1.1.1:1111

>>> print decoded['slave']

[u'2.2.2.2:2222', u'3.3.3.3:3333']

>>> print decoded['slave'][0]

2.2.2.2:2222

>>> print decoded['slave'][1]

3.3.3.3:3333