[Python-Dev] When to remove deprecated stuff (was: Deprecating the formatter module) (original) (raw)

Brett Cannon brett at python.org
Thu Aug 15 17:22:33 CEST 2013

On Thu, Aug 15, 2013 at 9:15 AM, Ezio Melotti <ezio.melotti at gmail.com>wrote:

Hi,

On Thu, Aug 15, 2013 at 3:29 PM, R. David Murray <rdmurray at bitdance.com> wrote: > On Thu, 15 Aug 2013 11:22:14 +0200, Antoine Pitrou <solipsis at pitrou.net> wrote: >> On Thu, 15 Aug 2013 11:16:20 +0200 >> Victor Stinner <victor.stinner at gmail.com> wrote: >> > 2013/8/15 Antoine Pitrou <solipsis at pitrou.net>: >> > > We don't have any substantial change in store for an eventual "Python >> > > 4", so it's quite a remote hypothesis right now. >> > >> > I prefered the transition between Linux 2 and Linux 3 (no major >> > change, just a "normal" release except the version), rather than the >> > transition between KDE 3 and KDE 4 (in short, everything was broken, >> > the desktop was not usable). >> > >> > I prefer to not start a list of things that we will make the >> > transition from Python 3 to Python 4 harder. Can't we do small changes >> > between each Python release, even between major versions? >> >> That's exactly what I'm saying. >> But some changes cannot be made without breakage, e.g. the unicode >> transition. Then it makes sense to bundle all breaking changes in a >> single version change. > > A number of us (I don't know how many) have clearly been thinking about > "Python 4" as the time when we remove cruft. This will not cause any > backward compatibility issues for anyone who has paid heed to the > deprecation warnings, but will for those who haven't. The question > then becomes, is it better to "bundle" these removals into the > Python 4 release, or do them incrementally? > A while ago I wrote an email to python-dev about our deprecation policy: http://mail.python.org/pipermail/python-dev/2011-October/114199.html My idea was to turn this into an informational PEP but I didn't receive much feedback. If people are interested I could still do it.

Wouldn't hurt, but should probably be a part of PEP 4. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20130815/73e33db3/attachment-0001.html>

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