[Feature Request] dict.setdefault()

[rantingrick]

setdefault should take **kw args in the case of needing to set
multiple defaults at one time. I would even settle for an *arg list if
i had to. Anything is better than...

d.setdefault(blah, blah)
d.setdefault(blah, blah)
d.setdefault(blah, blah)
d.setdefault(blah, blah)
if blah is not blah:
    d.setdefault(blah, blah)

...nuff said.

PS: And to counter the very *extemely* likely chance of some smart
arse responses
  * YES, i know i could create my own setdefault method but that is
not the point.
  * I know we are under the moratorium but someone had to mention it,

--rr