FWIW,
On Aug 21, 2016, at 12:30 AM, Piotr Ożarowski wrote:
>* all Python applications that support it, should use 3.X only *now*
> (and do not bother with things like alternatives or "-3" suffixes /
> "python3-" prefixes - at least for new packages; I'd even slowly start
> removing alternatives, if it doesn't affect users),
+1
>* libraries in Stretch should support 2.X (i.e. add python-foo binary
> packages) if that doesn't require too much additional work (py2dsp
> still creates them). I'm OK with shipping 3.X only packages in NEW
> packages, though. I'd not encourage people to do so but also not
> forbid it,
I'd also say that it isn't worth *removing* Python 2.x support right now,
unless of course upstream drops it first.
>* we shouldn't accept 2.X only packages in Buster (Stretch+1, released ~2019)
> unless they're a dependency of other packages, and start shipping 3.X only
> packages where it makes sense (and I hope that decision will be mostly made
> by upstreams by simply dropping 2.X support). We can drop some 2.X packages
> (problematic to maintain? better alternatives available? low popcon?), but
> do not do a mass removal yet,
+1
>* for Bullseye (Stretch+2, released ~2021) we should start dropping 2.X
> packages, and maybe even remove 2.X interpreter,
+1 - remember that this will be 10-11 years after 2.7 was released!
>* Bullseye + 1 (~2023) is the one without 2.X interpreter and
> python-foo packages for sure (and without /usr/bin/python symlink or
> at least without Debian packages mentioning it, there should be a rule
> to not speak about /usr/bin/python symlink! ;)
+1
>Note that Python upstream will stop supporting 2.X in ~2020 so about one
>year (and a half?) after releasing Buster.
As you point out, upstream will stop supporting Python 2.7 for normal bug
fixes in 2020, although I suspect it will be supported in security-fix
source-only mode for some years after that. There has not be an official
announcement of that IIRC, and PEP 373 doesn't describe that, so it's just my
opinion.
Cheers,
-Barry
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