[Python-ideas] Idea: Deferred Default Arguments?

[Steven D'Aprano]

On Fri, Jul 20, 2018 at 05:54:44PM +0200, Peter O'Connor wrote:
> On Fri, Jul 20, 2018 at 5:41 PM, Steven D'Aprano <steve at pearwood.info>
> wrote:
> >
> >
> > What makes you think that a built-in deferred feature won't have exactly
> > the same issues? Do you have an implementation that doesn't need to do
> > intraspection?
> 
> 
> I don't know about these low level things, but I assume it'd be implemented
> in C and wouldn't have the same cost as entering a new function in Python.
>  I imagine it just being a small modification of the mechanism that Python
> already uses to assign values to arguments when a function is called.  Is
> that not the case?

I don't know. That's why I'm asking why you think it wouldn't.


-- 
Steve