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

Oleg Broytman phd at phdru.name
Wed Apr 4 21:24:36 CEST 2012


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/            phd at phdru.name
           Programmers don't die, they just GOSUB without RETURN.


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