On 18 Dec 2013 06:21, "Maciej Fijalkowski" <fij...@gmail.com> wrote: > > On Tue, Dec 17, 2013 at 7:21 PM, Brett Cannon <br...@python.org> wrote: > > Maybe someone from PyPy should bring this up as an official topic at the > > language summit to figure out the blockers (again). Or it can join regex on > > the list of "module discussed for addition at the language summit but never > > quite pushed to commitment". =) > > we're still working on resolving discussed issues before officially > proposing it for inclusion.
Note that there's also now a link chain from the CPython extension creation docs to cffi (and Cython) - the cross version Python Packaging User Guide now has a section on binary extensions that covers several of the alternatives to writing them by hand, while the stdlib extension writing guide has a note at the beginning pointing to that resource. Cheers, Nick. > > > > > > > On Tue, Dec 17, 2013 at 11:43 AM, Stefan Krah <ste...@bytereef.org> wrote: > >> > >> Maciej Fijalkowski <fij...@gmail.com> wrote: > >> > I would like to discuss on the language summit a potential inclusion > >> > of cffi[1] into stdlib. This is a project Armin Rigo has been working > >> > for a while, with some input from other developers. > >> > >> I've tried cffi (admittedly only in a toy script) and find it very nice > >> to use. > >> > >> Here's a comparison (pi benchmark) between wrapping libmpdec using a > >> C-extension (_decimal), cffi and ctypes: > >> > >> > >> +-------------------------------+----------+----------+---------+ > >> | | _decimal | ctypes | cffi | > >> +===============================+==========+==========+=========+ > >> | cpython-tip (with-system-ffi) | 0.19s | 5.40s | 5.14s | > >> +-------------------------------+----------+----------+---------+ > >> | cpython-2.7 (with-system-ffi) | n/a | 4.46s | 5.18s | > >> +-------------------------------+----------+----------+---------+ > >> | Ubuntu-cpython-2.7 | n/a | 3.63s | - | > >> +-------------------------------+----------+----------+---------+ > >> | pypy-2.2.1-linux64 | n/a | 125.9s | 0.94s | > >> +-------------------------------+----------+----------+---------+ > >> | pypy3-2.1-beta1-linux64 | n/a | 264.9s | 2.93s | > >> +-------------------------------+----------+----------+---------+ > >> > >> > >> I guess the key points are that C-extensions are hard to beat and that > >> cffi performance on pypy-2 is outstanding. Additionally it's worth noting > >> that Ubuntu does something in their Python build that we should do, too. > >> > >> > >> +1 for cffi in the stdlib. > >> > >> > >> > >> Stefan Krah > >> > >> > >> > >> _______________________________________________ > >> Python-Dev mailing list > >> Python-Dev@python.org > >> https://mail.python.org/mailman/listinfo/python-dev > >> Unsubscribe: > >> https://mail.python.org/mailman/options/python-dev/brett%40python.org > > > > > > > > _______________________________________________ > > Python-Dev mailing list > > Python-Dev@python.org > > https://mail.python.org/mailman/listinfo/python-dev > > Unsubscribe: > > https://mail.python.org/mailman/options/python-dev/fijall%40gmail.com > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > https://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: https://mail.python.org/mailman/options/python-dev/ncoghlan%40gmail.com
_______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com