请问下面字符串怎样转换成list

timespace

这是标准的JSON字符串吧，安全第一：

1. sh-3.2 $python
   
2. Python 2.7.5 (default, Sep 12 2013, 21:33:34)
   
3. [GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin
   
4. Type "help", "copyright", "credits" or "license" for more information.
   
5. >>> import json
   
6. >>> json.loads('[6,"http://bbs.pen.cn",[],[],{"uid":7975422,"username":"125492856@qq.com","passid":"7440299"}]')
   
7. [6, u'http://bbs.pen.cn', [], [], {u'username': u'125492856@qq.com', u'passid': u'7440299', u'uid': 7975422}]
   
8. >>>

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