[Chicago] =?gb2312?q?=BB=D8=B8=B4=A3=BA=20Re:=20=20re=A3=BA=20=20re=A3=BA?= =?gb2312?q?=20Re:=20=20UnicodeDecodeError=20When=20compiling=20BitTorrent?= =?gb2312?q?=20in=20BitTornado?=

[=?gb2312?q?=B7=C5=DC=F8=20=CC=B8?=]

thanks the problem is solved,thx.and can i ask a second question?
  how to debug in python environment?i mean detecting and fixing bugs.
  thanks
  jolley
Ian Bicking <ianb at colorstudy.com> дµÀ£º
  ·ÅÜø ̸ wrote:
> 
> also to supplement it, my file system encoding is "mbcs",and the default 
> encoding is "ascii".

Well, I should say that you've unintentionally gotten into a rather
difficult place in Python. Anyway, I'll suggest an expedient fix that
might work for you, but only if mbcs is a superset of ASCII.

You can do this to set the default encoding (which is currently 'ascii'):

import sys
reload(sys)
sys.setdefaultencoding('mbcs')

Do this early in the process, and when Python doesn't know what the
encoding of a string is it will guess mbcs. If mbcs is not a superset
of ASCII then this will probably cause all kinds of havoc. Otherwise...


> thanks.
> jolley
> */·ÅÜø ̸ /* дµÀ£º
> 
> first, as a newbie, i may ask some foolish problems, pls be patient
> and endurable.
> second, i have done this after your explanation:
> 
> from sys import getfilesystemencoding
> path.decode(sys.getfilesystemencoding)

Note this doesn't do anything, you have to do:

path = path.decode(sys.getfilesystemencoding())

> path = ("\\").decode(sys.getfilesystemencoding())
> +b.decode(sys.getfilesystemencoding())

Perhaps the best strategy is not to try to use unicode strings at all.
It's only when you mix a unicode string and an encoded non-ascii string
that you get problems. If they are all encoded strings, it should work
(assuming your encodings are consistent -- if you use utf8 one place and
mbcs elsewhere it will be break things).

This function can be used to encode things:

def encode_mbcs(s):
if isinstance(s, unicode):
return s.encode('mbcs')
else:
return s

Then use this around any string that is acting funny.


-- 
Ian Bicking | ianb at colorstudy.com | http://blog.ianbicking.org
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