On Fri, 25 Sep 2020 at 14:07, Ricky Teachey <ricky@teachey.org> wrote:
>
> I'd like to hear more about why the empty tuple has been selected as the default index.

It's still not settled. Steven proposed None, I propose empty tuple
for affinity with *args behavior, others proposed no positional arg at
all, but then there's the problem of the setter.
I sent a mail to the numpy mailing list yesterday, and all people who
replied seemed to prefer empty tuple.

Here is the thread

http://numpy-discussion.10968.n7.nabble.com/Request-for-comments-on-PEP-637-Support-for-indexing-with-keyword-arguments-td48489.html



--
Kind regards,

Stefano Borini