Nick Coghlan <ncogh...@gmail.com> wrote: > On 12 Oct 2013 05:49, "Eric Snow" <ericsnowcurren...@gmail.com> wrote: > > > > On Fri, Oct 11, 2013 at 1:41 PM, Stefan Krah <ste...@bytereef.org> wrote: > > > Antoine Pitrou <solip...@pitrou.net> wrote: > > >> Just create a _pydecimal module (like _pyio). > > > > > > That's very fast indeed. There's one minor problem: For backwards > compatibility > > > and pickling [1] I'd need to add > > > > > > __module__ = 'decimal' > > > > > > to every class of the Python version. Are there any reasons not to do > > > that? > > > > Try just putting "__name__ = 'decimal'" at the top of the source file. > > In this case the fixup needs to be conditional on the absence of "_decimal". > Aside from that, yes, lying about name is the easiest way to preserve pickle > compatibility while still moving code around.
Thanks Eric and Nick. The setup pretty much works (see issue #19232) and the import speedup is quite large. I wonder if Cpython's startup time could be reduced if this strategy was applied to other modules as well (see #19229). There are some concerns whether the change would impact other Python implementations, so I changed the subject (hoping for feedback). 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/archive%40mail-archive.com
