[Python-Dev] SETL (was: Lukewarm about range literals)

2000年8月29日 07:53:32 -0500

> It was way ahead of its time. Still is! Check out its general loop
> construct, though -- now *that's* a kitchen sink. Guido mentioned that
> ABC's Lambert Meertens spent a year's sabbatical at NYU when SETL was in its
> heyday, and I figure that's where ABC got quantifiers in boolean expressions
> (if each x in list has p(x); if no x in list has p(x); if some x in list has
> p(x)). Have always wondered why Python didn't have that too; I ask that
> every year, but so far Guido has never answered it <wink>.

I don't recall you asking me that even *once* before now. Proof,
please?
Anyway, the answer is that I saw diminishing returns from adding more
keywords and syntax.
--Guido van Rossum (home page: http://www.pythonlabs.com/~guido/)