Re: [Python-Dev] an alternative to embedding policy in PEP 418 (was: PEP 418: Add monotonic clock)

2012年4月04日 12:27:01 -0700

On Wed, Apr 04, 2012 at 11:03:02AM -0700, Ethan Furman wrote:
> Oleg Broytman wrote:
> > . Pythonic equivalent of "get_clock(THIS) or get_clok(THAT)" is
> >
> >for flag in (THIS, THAT):
> > try:
> > clock = get_clock(flag)
> > except:
> > pass
> > else:
> > break
> >else:
> > raise ValueError('Cannot get clock, tried THIS and THAT')
> 
> 
> Wow -- you'd rather write nine lines of code instead of three?
> 
> clock = get_clock(THIS) or get_clock(THAT)
> if clock is None:
> raise ValueError('Cannot get clock, tried THIS and THAT')
 Yes - to force people to write the last two lines. Without forcing
most programmers will skip them.
Oleg.
-- 
 Oleg Broytman http://phdru.name/ [email protected]
 Programmers don't die, they just GOSUB without RETURN.
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