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Re: dropping python2 [was Re: scientific python stack transitions]

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On Sunday, July 7, 2019 6:13:45 PM EDT Thomas Goirand wrote:
> On 7/7/19 5:31 PM, Matthias Klose wrote:
> > On 07.07.19 16:55, Drew Parsons wrote:
> >> On 2019-07-07 22:46, Mo Zhou wrote:
> >>> Hi science team,
> >>> 
> >>> By the way, when do we start dropping python2 support?
> >>> The upstreams of the whole python scientific computing
> >>> stack had already started dropping it.
> >> 
> >> Good question.  I think it is on the agenda this cycle, but debian-python
> >> will have the call on it.
> > 
> > you can start dropping it now, however please don't drop anything yet with
> > reverse dependencies.  So leaf packages first.
> > 
> > Matthias
> 
> I'm sorry, but I think I need to contest this. Doing things in order,
> first leaf, then go all the way back, will take too long, and this is
> IMO unnecessary effort. Older binary packages will anyway stay in the
> archive as long as they are needed, and no FTP hint is added (please
> correct me if I'm wrong here... but that's what I saw in the past).
> 
> Also, those who aren't doing the work of switching to Py2 will need to
> be kicked away anyway.
> 
> You've done some pretty destructive transitions yourself for other
> stuff, so why should we bother on this simple case?
> 
> Last, a 2 years cycle to get rid of all traces of Python 2 *will* take
> some time, maybe more than we can even think of, so we'd better take
> some shortcuts if we can.

Are you 100% certain that there isn't some small subset of python2 packages we 
will end up needing for bullseye?  If not, this is not a good suggestion.

Scott K

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Thread

dropping python2 [was Re: scientific python stack transitions] Drew Parsons <dparsons@debian.org> - 2019-07-07 17:00 +0200
  Re: dropping python2 [was Re: scientific python stack transitions] Matthias Klose <doko@debian.org> - 2019-07-07 17:40 +0200
    Re: dropping python2 [was Re: scientific python stack transitions] Drew Parsons <dparsons@debian.org> - 2019-07-07 19:30 +0200
    Re: dropping python2 [was Re: scientific python stack transitions] Scott Kitterman <debian@kitterman.com> - 2019-07-08 00:40 +0200
    RE:dropping python2 [was Re: scientific python stack transitions] PICCA Frederic-Emmanuel <frederic-emmanuel.picca@synchrotron-soleil.fr> - 2019-07-08 09:40 +0200
      Re: dropping python2 [was Re: scientific python stack transitions] Andrey Rahmatullin <wrar@debian.org> - 2019-07-08 09:50 +0200
      Re: dropping python2 [was Re: scientific python stack transitions] Elena ``of Valhalla'' <valhalla-d@trueelena.org> - 2019-07-08 10:20 +0200
        Re: dropping python2 [was Re: scientific python stack transitions] "W. Martin Borgert" <debacle@debian.org> - 2019-07-09 22:50 +0200
    Re: dropping python2 [was Re: scientific python stack transitions] Ansgar <ansgar@debian.org> - 2019-07-08 10:20 +0200
      Re: dropping python2 [was Re: scientific python stack transitions] Paul Tagliamonte <paultag@debian.org> - 2019-07-16 17:10 +0200
        Re: dropping python2 [was Re: scientific python stack transitions] Andrey Rahmatullin <wrar@debian.org> - 2019-07-16 17:30 +0200
          Re: <DKIM> Re: dropping python2 [was Re: scientific python stack  transitions] Matthias Klose <doko@debian.org> - 2019-07-16 17:50 +0200
            Re: <DKIM> Re: dropping python2 [was Re: scientific python stack transitions] Scott Kitterman <debian@kitterman.com> - 2019-07-17 02:50 +0200
        Re: dropping python2 [was Re: scientific python stack transitions] Matthias Klose <doko@debian.org> - 2019-07-16 17:30 +0200
          Re: dropping python2 [was Re: scientific python stack transitions] Paul Tagliamonte <paultag@debian.org> - 2019-07-16 17:50 +0200

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