[Python-Dev] Re: PEP 218 (sets); moving set.py to Lib

[Eric S. Raymond]

Fran=E7ois Pinard <pinard@iro.umontreal.ca>:
> I never saw `|' nor `&' in literature, except `|' which means "such tha=
t"
> in set comprehensions, as Pythoneers would be tempted to say!  On the
> other hand, for programmers, `|' and `&' are rather natural and easy.

Now that I think of it, I've never seen a mathematician use this at all.
But I agree that it's a good choice for programmersl
=20
> Eric has offered the idea of adding Cartesian product, and despite the
> usual notation is a tall thin `X', maybe it would be nice reserving `*'
> for that?=20

Mildly in favor, but I wouldn't cry if it didn't happen.
--=20
		<a href=3D"http://www.tuxedo.org/~esr/">Eric S. Raymond</a>