On Mon, 2 Apr 2018 15:57:11 -0700 Lukasz Langa <luk...@langa.pl> wrote: > > On Apr 2, 2018, at 2:13 PM, Antoine Pitrou <solip...@pitrou.net> wrote: > > > > On Mon, 2 Apr 2018 13:48:46 -0700 > > Lukasz Langa <luk...@langa.pl> wrote: > >> Pickle protocol version 4.0 was originally defined back in PEP 3154 and > >> shipped as part of Python 3.4 back in 2011. Yet it's still not the > >> default. > > > > Because we want pickles produced with the default to be readable by > > earlier Python 3 versions. > > (the same reason protocol 0 stayed the default throughout the Python 2 > > lifetime) > > Alright, so that means we can easily do this for Python 3.8, right? I mean, > following Christian's logic, Python 3.3 is already dead, with its final > release done in February 2016 and support dropped in September 2017 per PEP > 398. > > I think we need to get past thinking about "Python 2" vs. "Python 3". This > frame of mind creates space for another mythical release of Python that will > break all the compatibilities, something we promised not to do. A moving > backward compatibility window that includes the last release still under > security fixes seems like a good new framework for this. > > What do you think?
That sounds reasonable to me. Let's see whether other people disagree. Regards Antoine. _______________________________________________ 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
