Path: ...!npeer.as286.net!npeer-ng0.as286.net!fu-berlin.de!uni-berlin.de!not-for-mail
From: "Peter J. Holzer" <hjp-python@hjp.at>
Newsgroups: comp.lang.python
Subject: Re: How to manage accented characters in mail header?
Date: Mon, 6 Jan 2025 20:43:21 +0100
Lines: 58
Message-ID: <mailman.52.1736192610.2912.python-list@python.org>
References: <satn4l-6sqh.ln1@q957.zbmc.eu>
 <decode_header-20250104154914@ram.dialup.fu-berlin.de>
 <dhdo4l-uvsi.ln1@q957.zbmc.eu>
 <20250106194321.oz27jt37xpuhdssn@hjp.at>
Mime-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature"; boundary="e7ytifu4m7upqtfl"
X-Trace: news.uni-berlin.de cBdVP93fFSUaivD5Qav+Pwt0VTtBMpDs8HCF3uPoNiDw==
Cancel-Lock: sha1:gRItGcyjw+aVXJEj4e+CFD36xfo= sha256:kPwhZ6+rpfMJhr5kkQuZFK0oQPdh/bODTze9n4wNBBw=
Return-Path: <hjp-python@hjp.at>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
Authentication-Results: mail.python.org; dkim=none reason="no signature";
 dkim-adsp=none (unprotected policy); dkim-atps=neutral
X-Spam-Status: OK 0.001
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'content-
 type:multipart/signed': 0.05; 'ram': 0.07; '<>,': 0.09; 'content-
 type:application/pgp-signature': 0.09; 'filename:fname piece:asc':
 0.09; 'filename:fname piece:signature': 0.09;
 'filename:fname:signature.asc': 0.09; 'subject:header': 0.09;
 '"creative': 0.16; '__/': 0.16; 'challenge!"': 0.16; 'encoded,':
 0.16; 'from:addr:hjp-python': 0.16; 'from:addr:hjp.at': 0.16;
 'from:name:peter j. holzer': 0.16; 'hjp@hjp.at': 0.16; 'holzer':
 0.16; 'parsing': 0.16; 'reality.': 0.16; 'stross,': 0.16;
 'subject:characters': 0.16; 'url-ip:212.17.106.129/32': 0.16;
 'url-ip:212.17.106/24': 0.16; 'url-ip:212.17/16': 0.16; 'url:hjp':
 0.16; '|_|_)': 0.16; 'wrote:': 0.16; 'addresses': 0.19; 'it?':
 0.19; 'to:addr:python-list': 0.20; 'header': 0.23; 'stefan': 0.26;
 'chris': 0.28; 'sense': 0.28; 'think': 0.29; 'subject:How': 0.31;
 "doesn't": 0.32; 'extract': 0.32; 'python-list': 0.32; 'there':
 0.33; 'header:In-Reply-To:1': 0.34; 'also,': 0.36; 'way': 0.38;
 'use': 0.39; "that's": 0.39; 'wrote': 0.39; 'email': 0.63;
 'between': 0.63; 'from:': 0.63; 'received:userid': 0.66; 'skip:e
 20': 0.67; 'latter': 0.69; 'charset:iso-8859-1': 0.73; 'supposed':
 0.76; 'need.': 0.84; 'decode': 0.84; 'received:at': 0.84;
 'subject:mail': 0.95; 'green': 0.96
Mail-Followup-To: python-list@python.org
Content-Disposition: inline
In-Reply-To: <dhdo4l-uvsi.ln1@q957.zbmc.eu>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.39
Precedence: list
List-Id: General discussion list for the Python programming language
 <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>,
 <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <https://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: <https://mail.python.org/mailman/listinfo/python-list>,
 <mailto:python-list-request@python.org?subject=subscribe>
X-Mailman-Original-Message-ID: <20250106194321.oz27jt37xpuhdssn@hjp.at>
X-Mailman-Original-References: <satn4l-6sqh.ln1@q957.zbmc.eu>
 <decode_header-20250104154914@ram.dialup.fu-berlin.de>
 <dhdo4l-uvsi.ln1@q957.zbmc.eu>
Bytes: 5794


--e7ytifu4m7upqtfl
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On 2025-01-04 19:07:57 +0000, Chris Green via Python-list wrote:
> Stefan Ram <ram@zedat.fu-berlin.de> wrote:
> > Chris Green <cl@isbd.net> wrote or quoted:
> > >From: =3D?utf-8?B?U8OpYmFzdGllbiBDcmlnbm9u?=3D <sebastien.crignon@amvs=
=2Efr>
> >=20
> Is there a simple[r] way to extract just the 'real' address between
> the <>, that's all I actually need.  I think it has the be the last
> chunk of the From: doesn't it?

No,
    From: <sebastien.crignon@amvs.fr> (S=E9bastien Crignon)
would also be permissible (properly encoded, of course), and even
    From: < sebastien (S=E9bastien) . crignon (Crignon) @ amvs . fr >
(although I think the latter is deprecated).

And also, there can be more than one address in a From header.

To properly extract email addresses from a header, use
email.utils.getaddresses(). You don't have to decode the header first.
The MIME-encoding is supposed to not interfere with parsing headers for
machine-readable information like addresses or message ids.

        hp

--=20
   _  | Peter J. Holzer    | Story must make more sense than reality.
|_|_) |                    |
| |   | hjp@hjp.at         |    -- Charles Stross, "Creative writing
__/   | http://www.hjp.at/ |       challenge!"

--e7ytifu4m7upqtfl
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=ooym
-----END PGP SIGNATURE-----

--e7ytifu4m7upqtfl--