Path: csiph.com!usenet.pasdenom.info!news.albasani.net!newsfeed.freenet.ag!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.002
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:skip:s 10': 0.05; 'ascii': 0.07; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'terry': 0.09; 'toss': 0.09; ':-)': 0.13; 'encoding': 0.15; "'o',": 0.16; 'decode': 0.16; 'mean,': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'reedy': 0.16; 'stdlib.': 0.16; 'stripped': 0.16; 'sufficient,': 0.16; 'wrote:': 0.17; 'jan': 0.18; 'tim': 0.18; '>>>': 0.18; '(or': 0.18; 'option.': 0.22; 'header:In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; 'forgot': 0.27; 'opposed': 0.27; 'header:X-Complaints-To:1': 0.28; 'decide': 0.28; 'chase': 0.29; 'thursday,': 0.30; 'could': 0.32; 'print': 0.32; 'to:addr:python-list': 0.33; 'text': 0.34; 'text.': 0.35; 'so,': 0.35; 'doing': 0.35; 'pm,': 0.35; 'subject:?': 0.35; 'similar': 0.35; 'something': 0.35; 'received:org': 0.36; 'but': 0.36; 'wanted': 0.36; 'characters': 0.36; 'depends': 0.36; 'keeps': 0.37; 'why': 0.37; 'subject:: ': 0.38; 'mark': 0.38; 'mean': 0.38; 'to:addr:python.org': 0.39; 'recipient': 0.39; 'subject:-': 0.40; 'header:Received:5': 0.40; 'think': 0.40; 'information': 0.63; 'want,': 0.65; 'subject': 0.66; 'dict.': 0.84; 'received:fios.verizon.net': 0.84; 'wanted,': 0.84; 'approach.': 0.91
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Least-lossy string.encode to us-ascii?
Date: Fri, 14 Sep 2012 16:57:29 -0400
References: <50524F6F.6070604@tim.thechases.com> <k2tqne$gie$1@ger.gmane.org> <mailman.654.1347580392.27098.python-list@python.org> <8a35c480-7594-4202-afe8-f03db9418301@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: quoted-printable
X-Gmane-NNTP-Posting-Host: pool-173-75-251-66.phlapa.fios.verizon.net
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20120824 Thunderbird/15.0
In-Reply-To: <8a35c480-7594-4202-afe8-f03db9418301@googlegroups.com>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.721.1347656284.27098.python-list@python.org>
Lines: 38
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1347656285 news.xs4all.nl 6894 [2001:888:2000:d::a6]:38762
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:29189

On 9/13/2012 10:09 PM, Mark Tolonen wrote:
> On Thursday, September 13, 2012 4:53:13 PM UTC-7, Tim Chase wrote:
>> On 09/13/12 18:36, Terry Reedy wrote:

>>> 'keep as much information as possible' would mean an effectively
>>> lossless transliteration, which you could do with a dict.
>>> {<o-with-accent>: 'o', <c-cedilla>: 'c,' (or pick something that woul=
d

>> Vlastimil's solution kept the characters but stripped them of their
>> accents/tildes/cedillas/etc, doing just what I wanted, all using the
>> stdlib.  Hard to do better than that :-)

You mean, hard to do better than what you think you want, as opposed to=20
what you said you wanted in both the subject line and the text line I=20
quoted. What you need depends on why you need ascii only text and what=20
the recipient will do with the ascii only text. Print it on an=20
ascii-only printer? Or something similar? If so, a lossy encoding may be =

sufficient, but why not let the recipient decide to toss info?

> How about using UTF-7 for transmission and decode on the other end?
 > This keeps the transmission all 7-bit, and no loss.
>
>      >>> s=3Du"servi=C3=A7o m=C3=B3vil".encode('utf-7')
>      >>> print s
>      servi+AOc-o m+APM-vil
>      >>> print s.decode('utf-7')
>      servi=C3=A7o m=C3=B3vil

Nice. I was barely aware of and forgot that option. This and similar=20
suggestions to use existing methods is much better than my hackish approa=
ch.

--=20
Terry Jan Reedy