(Adding python-dev back to the CC list) On 9/20/05, Jason Orendorff <[EMAIL PROTECTED]> wrote: > > If there's one thing I've learned from the PEP 308 vote, it is that > > votes for language don't work. I prefer some discussion on Python-dev > > after which I pick one. > > +1 > > Some visual aids: > > return (if q: q.popleft() else: None) > return (if q then q.popleft() else None) > return q ? q.popleft() : None > > Hmmm. Score one for ?:. But:
Why? Just because it's shorter? > menu.append( > if gotHerring(): popHerring() > elif gotAnyFish(): popAnyFish() > else: Tofurbot()) > > menu.append(gotHerring() ? popHerring() : gotAnyFish() ? > popAnyFish() : Tofurbot()) > > Here, I like the way the verbose syntax politely spreads itself out > over multiple lines. In C, I never know where to put the line breaks. Ouch. You're bringing up another valid issue: whether to support "elif". I think if we go with (if ... then ... else ...) or (if ...: ... else: ...) we'll have to support elif as well: (if ... then ... elif ... then ... else ...) or (if ...: ... elif ...: ... else: ...) I really don't like the latter. Here's a suggestion for a way to decide between a "wordy" version or C-style "?:" -- if we abandon and/or in favor of &&/||, we should also go with ?:; if we keep and/or, we should use a keyword-based conditional as well. Since so far the feedback is overwhelmingly in favor of keeping and/or, I think that settles the case in favor of a wordy version. My preference then would be (if ... then ... elif ... then ... else ...) which gives my a nice nostalgic feeling because (except for the elif part) Algol-60 had the same thing -- the first programming language I ever learned. :) (Oh, and a way to decide between colon or no colon: we're not using colons in list comps and genexprs either.) -- --Guido van Rossum (home page: http://www.python.org/~guido/) _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
