On Tue, Jun 1, 2021 at 1:46 AM David Mertz <me...@gnosis.cx> wrote:

> On Mon, May 31, 2021 at 11:41 PM Steven D'Aprano <st...@pearwood.info>
> wrote:
>
>>
>>
>
>> Not every builtin needs a mollyguard to protect against misuse.
>>
>
> I'm not likely to rebind `Ellipsis` so that's not really my concern.
> Rather, I'm interested in the point André Roberge started the thread with.
>

Actually, the very first observation I made is that, if you try to assign a
value to '...', the traceback includes the message:

SyntaxError: cannot assign to Ellipsis

which is clearly wrong. If it would state:

SyntaxError: cannot assign to '...'

the only inconsistency left would be a more minor one, that is of the repr
of '...' stating that it is Ellipsis which can be incorrect if Ellipsis is
bound to a different value.

Sorry for opening what became a rabbit hole of a discussion.

André




> The repr of '...' should be more self-explanatory to beginners.  It's
> basically co-opting the square brackets or parenthesis to mean something
> that doesn't really have anything to do with calling or indexing in order
> to have a repr—in tracebacks specifically, but elsewhere also—that reminds
> users of the connection between `...` and `Ellipsis`.
>
> --
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> become abortifacients against new conceptions.
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