[Python-Dev] PEP 362: 4th edition

[Antoine Pitrou]

On Fri, 15 Jun 2012 17:07:46 -0400
Yury Selivanov <yselivanov.ml at gmail.com> wrote:
> On 2012-06-15, at 4:48 PM, Victor Stinner wrote:
> [snip]
> > Would it be possible to only create a signature for builtin the first
> > time that you read its __signature__ attribute? I don't know how to
> > implement such behaviour on a builtin function. I don't know if it's
> > important to decide this right now.
> > 
> > I don't want to create a signature at startup if it is not used,
> > because it would waste memory (as docstrings? :-)).
> 
> I think when we have the working mechanism to generate them in place, 
> we can make it lazy.

I'm not sure I understand. The PEP already says signatures are computed
lazily. Is there an exception for built-in functions?

Regards

Antoine.