Tuple assignment and generators?

[Diez B. Roggisch]

> ... I had no clue.

We figured that....

> I guess the take-away lesson is to steer clear from any reliance on
> object identity checks, if at all possible.

You've been told that quite a few times before that "is" is not intended for
what you used it. 

Some people actually listen to what others tell. Others seem to be driven by
the deep desire to make even the tiniest bit of getting-a-grasp a public
affair. 

Diez