On Thu, Mar 26, 2009 at 18:05, Terry Reedy <tjreedy@udel.edu> wrote:

An ars technica articla just linked to in a python-list post

http://arstechnica.com/open-source/news/2009/03/google-launches-project-to-boost-python-performance-by-5x.ars

calls the following project "Google launched"
http://code.google.com/p/unladen-swallow/wiki/ProjectPlan

(Though the project page does not really claim that.)

I am sure some people here might find this interesting.

I'd love to have a faster CPython, but this note:
"Will probably kill Python Windows support (for now)."
would kill merger back into mainline (for now) without one opposing being 'conservative'.

Well, that's "for now". It is brand new and still under active development. View it as a long term development branch. This is not about to replace CPython suddenly since work on Unladen just started.

If one adds type annotations so that values can be unboxed, would not Cython, etc, do even better for speedup?

Nope as Unladen is planning to re-implement the eval loop, something Cython doesn't optimize without the need to suddenly start adding type annotations to code.

-Brett