import sys
import codecs

file = open("result.xml", 'w')
writer = codecs.lookup ('utf-8')[3](file)
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print codecs.lookup ('utf-8')


2007/11/17, Deng Patrick <kedeng19801002在gmail.com>:
>
> import sys
> import codecs
>
> file = open("result.xml", 'w')
> writer = codecs.lookup ('utf-8')[3](file)
>
> _______________________________________________
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2007/11/17, Deng Patrick <kedeng19801002 at gmail.com>:
> import sys
> import codecs
>
> file = open("result.xml", 'w')
> writer = codecs.lookup ('utf-8')[3](file)

可以这样分开写，更清楚些。
ref = codecs.lookup("utf-8")[3] # 取得utf8编码的StreamWriter类对象引用
writer = ref(file) #创建一个StreamWriter类实例，要求给构造函数传入一个file-like对象

使用codecs.lookup方法能够获得与一种编码相关的多个对象引用，codecs模块中有其他函数能够简化lookup方法的使用。

请参阅：
http://docs.python.org/lib/module-codecs.html
http://tkdchen.spaces.live.com/blog/cns!36EC325D5602B064!498.entry

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2007/11/17, Deng Patrick <kedeng19801002在gmail.com>:
>
> import sys
> import codecs
>
> file = open("result.xml", 'w')
> writer = codecs.lookup ('utf-8')[3](file)
>
> _______________________________________________
> python-chinese
> Post: send python-chinese在lists.python.cn
> Subscribe: send subscribe to python-chinese-request在lists.python.cn
> Unsubscribe: send unsubscribe to  python-chinese-request在lists.python.cn
> Detail Info: http://python.cn/mailman/listinfo/python-chinese
>
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