python解析json文件

import json
f = file("2.json");
s = json.load(f)
print s['end']
print s['sub_dic']['sub_str']
f.close

2.json的文件内容

{"sub_dic": {"sub_str": "this is sub str", "sub_list": [1, 2, 3]}, "end": "end", "list": [1, 2, "a", "b"], "str": "this is a string"}

结果:
end
this is sub str