[Python-Dev] repeated keyword arguments

Sat Jun 28 03:58:41 CEST 2008

On 2008年6月28日 11:17:10 am Greg Ewing wrote:
> tomer filiba wrote:
> > >>> def f(**kwargs):
> >
> > ... print kwargs
> > ...
> >
> > >>> f(a=5,b=7,a=8)
> >
> > {'a': 8, 'b': 7}
>> I can't think of any reason why one would need to be
> able to write such code, or even want to.

It would be nice to be able to do this:
defaults = dict(a=5, b=7)
f(**defaults, a=8) # override the value of a in defaults
but unfortunately that gives a syntax error. Reversing the order would 
override the wrong value. So as Python exists now, no, it's not 
terribly useful. But it's not inherently a stupid idea.
-- 
Steven