[Patches] [ python-Patches-866982 ] Bad behavior of email.Charset.Charset when locale is tr_TR

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Patches item #866982, was opened at 2003-12-29 05:29
Message generated for change (Settings changed) made by bwarsaw
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Category: Library (Lib)
Group: Python 2.3
Status: Open
Resolution: None
Priority: 7
Submitted By: Matthias Klose (doko)
>Assigned to: Barry A. Warsaw (bwarsaw)
Summary: Bad behavior of email.Charset.Charset when locale is tr_TR

Initial Comment:
Charset class' behaviour is bad when locale is set to
tr_TR. The problems's source is input_charset =
input_charset.lower() at line 393 of
/usr/lib/python2.3/email/Charset.py . This exeample
code can reproduce the error:

import locale
from email.Charset import Charset

locale.setlocale(locale.LC_ALL,("tr_TR","ISO-8859-9"))
foo = Charset(locale.nl_langinfo(locale.CODESET))
repr(foo) #Returns \xfdso-8859-9 which is not a charset
instead of iso-8859-9

The problem exists because the lower() of I in turkish
charset is ý (\xfd), not i. I will try to create and
submit a patch ASAP.



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Comment By: Martin v. Löwis (loewis)
Date: 2003-12-29 12:29

Message:
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user_id=21627

See the python-dev discussion. My proposal is to add
ascii_lower to <type 'str'>, and use that. Charset.py might
then use your code as a fallback.

Actually, it might be even more performant to do

lower_map = string.maketrans(string.ascii_upper,
string.ascii_lower)
def _ascii_lower(str):
   return str.translate(lower_map)

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