[Python-Dev] PyPy 1.7 - widening the sweet spot (original) (raw)

Brett Cannon brett at python.org
Mon Nov 28 16:11:57 CET 2011

On Fri, Nov 25, 2011 at 12:37, Antoine Pitrou <solipsis at pitrou.net> wrote:

On Fri, 25 Nov 2011 12:37:59 -0500 Brett Cannon <brett at python.org> wrote: > On Thu, Nov 24, 2011 at 07:46, Nick Coghlan <ncoghlan at gmail.com> wrote: > > > On Thu, Nov 24, 2011 at 10:20 PM, Maciej Fijalkowski <fijall at gmail.com_ _> > > wrote: > > > The problem is not with maintaining the modified directory. The > > > problem was always things like changing interface between the C > > > version and the Python version or introduction of new stuff that does > > > not run on pypy because it relies on refcounting. I don't see how > > > having a subrepo helps here. > > > > Indeed, the main thing that can help on this front is to get more > > modules to the same state as heapq, io, datetime (and perhaps a few > > others that have slipped my mind) where the CPython repo actually > > contains both C and Python implementations and the test suite > > exercises both to make sure their interfaces remain suitably > > consistent (even though, during normal operation, CPython users will > > only ever hit the C accelerated version). > > > > This not only helps other implementations (by keeping a Python version > > of the module continuously up to date with any semantic changes), but > > can help people that are porting CPython to new platforms: the C > > extension modules are far more likely to break in that situation than > > the pure Python equivalents, and a relatively slow fallback is often > > going to be better than no fallback at all. (Note that ctypes based > > pure Python modules aren't particularly useful for this purpose, > > though - due to the libffi dependency, ctypes is one of the extension > > modules most likely to break when porting). > > > > And the other reason I plan to see this through before I die

Uh! Any bad news? :/

Sorry, turn of phrase in English which didn't translate well. I just meant "when I get to it, which could quite possibly be a long time from now". This year has been absolutely insane for me personally (if people care, the details are shared on Google+ or you can just ask me), so I am just not promising anything for Python on a short timescale (although I'm still hoping the final details for bootstrapping importlib won't be difficult to work out so I can meet a personal deadline of PyCon). -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20111128/51e8ba8b/attachment.html>

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