[Python-Dev] repeated keyword arguments (original) (raw)
Steven D'Aprano steve at pearwood.info
Sat Jun 28 03:58:41 CEST 2008
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On Sat, 28 Jun 2008 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
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