[Python-Dev] repeated keyword arguments (original) (raw)
Scott Dial scott+python-dev at scottdial.com
Sat Jun 28 04:11:03 CEST 2008
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Steven D'Aprano wrote:
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
I can't help but think that would be difficult coding convention to use. However, I'm considerably less bothered by:
def f_with_defaults(**kw): defaults = dict(a=5, b=7) defaults.update(kw) return f(**defaults) f_with_default(a=8)
The only way f(**defaults, a=8) would be useful is if it happens a lot, and in that case, it's just as good of a candidate for being made into a function itself. I see this pattern all the time, and given that "f_with_defaults" probably has some semantic meaning, it probably would be nice to give it it's own name ("g").
Just my 2 cents.
-- Scott Dial scott at scottdial.com scodial at cs.indiana.edu
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