[Python-Dev] PEP 362: 4th edition

[Yury Selivanov]

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.

> Or we might drop
> __signature__ if python -O is used?


No, that'd be unacceptable.

-
Yury