Proposal: === and !=== operators

[Roy Smith]

In article <mailman.11777.1405184093.18130.python-list at python.org>,
 Chris Angelico <rosuav at gmail.com> wrote:
 
> And there are plenty of other laws of real numbers that floats violate
> (or, let's be generous, "approximate to rather than following
> perfectly"). For instance, adding two positive (non-zero) numbers
> should result in a number which is greater than either, but thanks to
> rounding, that's not always true.

Not to mention that whole "sum of all the positive integers" thing :-)