[Python-ideas] checking for identity before comparing built-in objects

[Stephen J. Turnbull]

Ethan Furman writes:

 > Or, to look at it another way, surely somewhere out in the Real World 
 > (tm) it is the case that two NaNs are indeed equal.

Sure, but according to Kahan's Uncertainty principle, you'll never be
able to detect it.

Really-there's no-alternative-to-backward-compatibility-or-IEEE754-ly y'rs