python で json を解析、出力する

gistfile1.py

import simplejson

## 書き出し
sample = {"@title": "みんなのPython", "author": "柴田淳", "pub": ["SoftBank Creative", "2006"]}
file = open("sample.json", "w")
simplejson.dump(sample, file, indent=3)
## sample.jsonの中身
#{
#   "@title": "みんなのPython", 
#   "pub": [
#      "SoftBank Creative", 
#      "2006"
#   ], 
#   "author": "柴田淳"
#}

## 読み込み
file = open("sample.json")
a = simplejson.load(file)
a["@title"]
# >> u"みんなのPython"