[Python-Dev] Trinary Operators (original) (raw)

Guido van Rossum guido@python.org
Fri, 07 Feb 2003 10:06:41 -0500

Oh dear. If you are really going to do these these cutesy English-like expressions I'd have to resurrect my old proposal of:

if CONDITION for some NAME in ITERABLE: if CONDITION for every NAME in ITERABLE: if CONDITION for no NAME in ITERABLE: Please, dont make me do that ;-)

An if-expression is frequently requested, and I expect people will continue to ask for it until I add one :-)

Who (besides you) has ever asked for generalized quantifiers? They were in ABC, with slightly different syntax:

IF EACH x IN {3; 6; 9} HAS x mod 3 = 0: WRITE "Yes" Yes

But they weren't useful enough IMO to bother incorporating at the time.

--Guido van Rossum (home page: http://www.python.org/~guido/)