Op 2006-01-27, Russell schreef <[EMAIL PROTECTED]>:
> I want my code to be Python 3000 compliant, and hear
> that lambda is being eliminated. The problem is that I
> want to partially bind an existing function with a value
> "foo" that isn't known until run-time:
>
> someobject.newfunc = lambda x: f(foo, x)
>
> The reason a nested function doesn't work for this is
> that it is, well, dynamic. I don't know how many times
> or with what foo's this will be done.
I don't see how dynamic is supposed to contradict with
nested functions. I assume from your tekst that foo
has some parameter-like charateristics. So the following
should work.
def produce(foo):
def func(x):
return f(foo, x)
return func
someobject.newfunc = produce(foo)
This kind of code can be generalized. Look for partial
application or curry.
> Now, I am sure there are a half-dozen ways to do this.
> I just want the one, new and shiny, Pythonic way. ;-)
The new and shiny, pythonic way depends on what you
really want, your question was a bit vague to answer
that.
--
Antoon pardon
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