On Thu, Feb 1, 2018 at 12:55 PM, Brett Cannon <brett@python.org> wrote:
On Thu, 1 Feb 2018 at 07:34 Pau Freixes <pfreixes@gmail.com> wrote:
[..]
2) Regarding the Yuris proposal to cache bultin functions, why this strategy cant be used for objects and their attributes within the function scope? Technically which is the red flag?
Descriptors are the issue for attributes. After that it's a question of whether it's worth the overhead of other scope levels (built-ins are somewhat unique in that they are very rarely changed).
I'm not sure I understand Pau's question but I can assure that my optimizations were fully backwards compatible and preserved all of Python attribute lookup semantics. And they made some macrobenchmarks up to 10% faster. Unfortunately I failed at merging them in 3.7. Will do that for 3.8. Yury