[Python-ideas] Updating PEP 315: do-while loops
Stephen J. Turnbull
stephen at xemacs.org
Mon Apr 27 06:58:39 CEST 2009
> Le Mon, 27 Apr 2009 01:36:29 +0900,
> "Stephen J. Turnbull" <stephen at xemacs.org> s'exprima ainsi:
> I do not understand the resistance against the "footer" options,
I have no objection to "footer options", unless they involve new
syntax. We already have
if condition: continue
and none of the proposals for footers improve readability over that,
The argument that a do-while with the terminal condition at the head
is a new structure and has some possible advantages in readability is
correct; that's all I had to say. Let me now add "but it's weak,
IMO." So I'm with Larry; we don't need this PEP. There may be some
way to do it, but the current suggestions aren't attractive enough.
Your suggestion of "until <condition>:" may be the best of the lot,
but it's ambiguous for the same reasons "do ... while <condition>:"
is. Many people will read that as "while not <condition>:".
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