用python写脚本时，遇到处理中文(乱码的中文)时，用decode('utf-8')会发现始终会报错

>>> txt_from = open('/home/love/ex130705.log')

>>> txt_from_iter= iter(txt_from)

>>> txt_proc = txt_from_iter.next().decode('utf-8', 'ignore')

Traceback (most recent call last):

File "/tmp/py4049kjX", line 41, in

txt_proc = txt_from_iter.next().decode('utf-8')

File "/usr/lib/python2.7/encodings/utf_8.py", line 16, in decode

return codecs.utf_8_decode(input, errors, True)

UnicodeDecodeError: 'utf8' codec can't decode bytes in position 84-85: invalid continuation byte

欲处理的原文件中部分显示为乱码：

2013-07-05 04:20:10 192.168.1.5 GET /Portals/0/鏁欒偛淇℃伅鏂囦欢澶 校园 80 - 25.XXX.10.99 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+Alexa+Toolbar) 404 0 2 234

2013-07-05 04:20:24 192.168.1.5 GET /Portals/0/鏁欒偛淇℃伅鏂囦欢澶 校园 80 - 25.XXX.10.99 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+Alexa+Toolbar) 404 0 2 296

这些显示乱码的中文字符是IIS在记录日志过程中出现的。python通过decode('utf-8')解码为UTF-8时会抛出异常UnicodeDecodeError。

解决：用 decode('utf-8', 'ignore')

>>>

>>> txt_proc = txt_from_iter.next().decode('utf-8', 'ignore')

>>>

查看decode的帮助：

help("".decode)

decode(...)

S.decode([encoding[,errors]]) -> object

Decodes S using the codec registered for encoding. encoding defaults

to the default encoding. errors may be given to set a different error

handling scheme. Default is 'strict' meaning that encoding errors raise

a UnicodeDecodeError. Other possible values are 'ignore' and 'replace'

as well as any other name registered with codecs.register_error that is

able to handle UnicodeDecodeErrors.