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Re: On the sensibility of portable scripts

From "Carlos E.R." <robin_listas@es.invalid>
Newsgroups comp.os.linux.misc
Subject Re: On the sensibility of portable scripts
Date 2026-04-27 12:42 +0200
Message-ID <u5r3cmxtpb.ln2@Telcontar.valinor> (permalink)
References (6 earlier) <10se0t7$39rl2$2@dont-email.me> <a5eqbmx7t3.ln2@Telcontar.valinor> <10se5hv$39rl2$3@dont-email.me> <10smv4t$257nq$1@dont-email.me> <10sn5q8$26tnd$3@dont-email.me>

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On 2026-04-27 10:12, Lawrence D’Oliveiro wrote:
> On Mon, 27 Apr 2026 06:19:09 -0000 (UTC), Lew Pitcher wrote:


>> If, for instance, you write a Perl or Python script for distribution,
>> it must not, to be useful to the intended audience, assume much more
>> than the common components of the selected language; a Python 3 script
>> won't be much use on a system that only has Python 2 installed, unless
>> it restricts itself to the subset of Python 3 syntax and features that
>> are common with Python 2.
> 
> I would not bother maintaining compatibility with any version of
> either Perl or Python that no longer gets official support from
> upstream.
> 
> For example, the last 2.x version of Python lost support over 6 years
> ago. For Python 3, the oldest currently-maintained version is 3.10.
> And going by past schedules, that will likely fall out of support
> sometime around October this year.

My system still has python 2 installed.

Scripts that I have seen do not specify versions, but they can.

#!/usr/bin/env python3

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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      Re: CUPS print to FAX for Brother MFC printers, source code and manual (pt 1) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-23 08:22 +0000
    Re: CUPS print to FAX for Brother MFC printers, source code and manual (pt 1) "J.O. Aho" <user@example.net> - 2026-04-23 10:09 +0200
  Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-22 21:24 +0200
    Re: CUPS print to FAX for Brother MFC printers Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-04-22 19:41 +0000
      Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-22 21:48 +0200
        Re: CUPS print to FAX for Brother MFC printers Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-04-23 01:14 +0000
        Re: CUPS print to FAX for Brother MFC printers Allodoxaphobia <trepidation@example.net> - 2026-04-23 18:35 +0000
          Re: CUPS print to FAX for Brother MFC printers Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-04-23 20:05 +0000
            Re: CUPS print to FAX for Brother MFC printers Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-04-25 09:39 +0000
          Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-23 22:30 +0200
            Re: CUPS print to FAX for Brother MFC printers Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-04-23 20:53 +0000
              Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-23 23:05 +0200
                Re: CUPS print to FAX for Brother MFC printers Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-04-23 22:13 +0000
                On the sensibility of portable scripts Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2026-04-27 06:19 +0000
                Re: On the sensibility of portable scripts Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-27 08:12 +0000
                Re: On the sensibility of portable scripts "Carlos E.R." <robin_listas@es.invalid> - 2026-04-27 12:42 +0200
                Re: On the sensibility of portable scripts Ian <gay@sfuu.ca> - 2026-04-27 09:43 -0700
                Re: On the sensibility of portable scripts rbowman <bowman@montana.com> - 2026-04-27 18:11 +0000
                Re: On the sensibility of portable scripts "Carlos E.R." <robin_listas@es.invalid> - 2026-04-27 23:24 +0200
                Re: On the sensibility of portable scripts Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-27 22:37 +0000
                Re: On the sensibility of portable scripts c186282 <c186282@nnada.net> - 2026-04-27 22:26 -0400
                Re: On the sensibility of portable scripts Marc Haber <mh+usenetspam2616@zugschl.us> - 2026-04-28 07:52 +0200
                Re: On the sensibility of portable scripts rbowman <bowman@montana.com> - 2026-04-27 18:08 +0000
                Re: On the sensibility of portable scripts "Carlos E.R." <robin_listas@es.invalid> - 2026-04-27 23:36 +0200
                Re: On the sensibility of portable scripts rbowman <bowman@montana.com> - 2026-04-27 18:06 +0000
                Re: On the sensibility of portable scripts "Carlos E.R." <robin_listas@es.invalid> - 2026-04-27 13:07 +0200
                Re: On the sensibility of portable scripts Richard Kettlewell <invalid@invalid.invalid> - 2026-04-27 21:00 +0100
              Re: CUPS print to FAX for Brother MFC printers Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-24 04:39 +0000
            Re: CUPS print to FAX for Brother MFC printers Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-04-25 09:41 +0000
              Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-25 13:57 +0200
          Re: CUPS print to FAX for Brother MFC printers Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-24 04:38 +0000
            Re: CUPS print to FAX for Brother MFC printers Richard Kettlewell <invalid@invalid.invalid> - 2026-04-24 08:45 +0100
              Re: CUPS print to FAX for Brother MFC printers Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-04-25 09:51 +0000
            Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-24 10:57 +0200
              Re: CUPS print to FAX for Brother MFC printers The Natural Philosopher <tnp@invalid.invalid> - 2026-04-24 10:31 +0100
                Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-24 11:43 +0200
                Re: CUPS print to FAX for Brother MFC printers The Natural Philosopher <tnp@invalid.invalid> - 2026-04-24 11:11 +0100
                Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-24 12:50 +0200
                Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-24 11:45 +0200
                Re: CUPS print to FAX for Brother MFC printers The Natural Philosopher <tnp@invalid.invalid> - 2026-04-24 11:11 +0100
                Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-24 12:51 +0200
                Re: CUPS print to FAX for Brother MFC printers The Natural Philosopher <tnp@invalid.invalid> - 2026-04-24 13:42 +0100
                Re: CUPS print to FAX for Brother MFC printers Bobbie Sellers <bliss-sf4ever@dslextreme.com> - 2026-04-24 18:53 -0700
          Re: CUPS print to FAX for Brother MFC printers jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-04-25 12:01 -0400
            Re: CUPS print to FAX for Brother MFC printers "Carlos E.R." <robin_listas@es.invalid> - 2026-04-25 22:05 +0200
            Re: CUPS print to FAX for Brother MFC printers Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-26 01:18 +0000
              Re: CUPS print to FAX for Brother MFC printers Marc Haber <mh+usenetspam2616@zugschl.us> - 2026-04-26 09:46 +0200
              Re: CUPS print to FAX for Brother MFC printers jayjwa <jayjwa@atr2.ath.cx.invalid> - 2026-04-26 11:31 -0400
                Re: CUPS print to FAX for Brother MFC printers John Bokma <contact@johnbokma.com> - 2026-04-26 19:31 +0200
                Re: CUPS print to FAX for Brother MFC printers The Natural Philosopher <tnp@invalid.invalid> - 2026-04-26 20:18 +0100
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