seeking deeper (language theory) reason behind Python design choice

[Marko Rauhamaa]

bartc <bc at freeuk.com>:
> I wondered what it meant, so I typed in:
>
>    print (...)
>
> and it displayed:
>
>    Ellipsis
>
> which wasn't very enlightening.

It doesn't mean anything for Python. It's just a special singleton
sentinel object that is stored in the predefined variable "Ellipsis" and
has a literal "..." in the language.

Apparently, Python provides it as a courtesy to the Numpy module:

   https://docs.scipy.org/doc/numpy-1.13.0/reference/arrays.indexing.html


Marko