why () is () and [] is [] work in other way?

[rusi]

On Apr 23, 9:34 am, Steven D'Aprano <steve
+comp.lang.pyt... at pearwood.info> wrote:

> "is" is never ill-defined. "is" always, without exception, returns True
> if the two operands are the same object, and False if they are not. This
> is literally the simplest operator in Python.

Circular definition: In case you did not notice, 'is' and 'are' are
(or is it is?) the same verb.