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From: Tim Daneliuk <info@tundraware.com>
Newsgroups: comp.lang.python
Subject: Re: Coming In Python 3.15: Sentinel Values
Date: Mon, 11 May 2026 19:51:21 -0500
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On 5/10/26 19:17, Lawrence D’Oliveiro wrote:
> A new feature coming in Python 3.15 is the “sentinel” class, useful
> for creating custom values to mark the end of sequences of items, that
> kind of thing
> <https://docs.python.org/3.15/library/functions.html#sentinel>,
> <https://peps.python.org/pep-0661/>.
> 
> For those times when a simple “None” marker element is not sufficient,
> this will be very convenient. <SNIP>

Forgive me, but this smells of Feeping Creaturism to solve a not very important question
at the expense crufting up the language and decreasing clarity.

I have seen this happen with every single language I ever used except perhaps,
assembler, C, and Forth.

Oh well, there's an opportunity here for someone to excise the noisy PEPs and
create Python Lite.