[EMAIL PROTECTED] wrote:
> I sort of lost track of the thread, then noticed a recent message where
> Guido seems to be cozying up to the idea, so I thought maybe I ought to
> think about it for a few minutes. As far as I can tell, the proposal is:
>
> usage example
> s.format(x, y) simple % substition, e.g.
> "my %s has %s".format("dog", "fleas")
> s.format(**x) named substitution using dictionaries, e.g.
> pet = "kangaroo"
> pest = "marmots"
> "my %(pet)s has %(pest)s".format(**locals())
> s.format(key=val) named substitution using keyword args, e.g.
> "my %(pet)s has %(pest)s".format(pet="armadillo",
> pest="texans")
>
> One thing that's always been a bit cumbersome for me with the current mod
> operator syntax is that it's all or nothing. I either have to cram
> everything into a single dictionary, hack up some sort of multimap, or fall
> back to simple substitution. With str.format(), I could presumably do
> something like
>
> pest = current_plague()
> if pest:
> print "my %(pet)s has %(pest)s".format(pet="dog", **locals())
You can do that right now, using
print "my %(pet)s has %(pest)s" % dict(pet="dog", **locals())
Georg
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