Function to apply superset of arguments to a function

[Carl Banks]

On Sep 9, 11:47 am, 7stud <bbxx789_0... at yahoo.com> wrote:
> On Sep 9, 10:45 am, Andrey Fedorov <anfedo... at gmail.com> wrote:
>
>
>
>
>
> > Hi all,
>
> > I've written a function [1] called apply_some which takes a set of
> > keywords arguments, filters only those a function is expecting, and
> > calls the function with only those arguments. This is meant to
> > suppress TypeErrors - a way to abstract the logic which checks what
> > arguments a passed-in function accepts.
>
> > For example:
>
> > > def foo(x=1, y=2):
> > >    return (x,y)
>
> > > apply_some(foo, y=0, z="hi") // calls foo(y=0)
> > > -> (1,0)
>
> > I'd like to expand this to fill undefined arguments with None, but
> > before I do, does anyone know of any packages/libraries which either
> > do something similar or would make this code cleaner?
>
> > Cheers,
> > Andrey
>
> > 1.http://gist.github.com/183375
>
> It sounds like all you are doing is moving type checking out of the
> original function and into another function.

I'm not sure where you got the idea that he was doing type checking,
unless you just saw the word "TypeError" and made a knee-jerk
assumption about what was he was doing.  If you'd have bothered trying
to understand the post you would have seen that he was filtering
arguments by name.


Carl Banks