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Re: Numpy migration?

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On Saturday, January 05, 2019 08:30:28 PM Ole Streicher wrote:
> Mattia Rizzolo <mattia@debian.org> writes:
> > On Sat, Jan 05, 2019 at 04:02:35PM +0100, Ole Streicher wrote:
> >> I'll do tonight. It however looks a bit suboptimal: when the CI test
> >> with a new version fails for an old reverse dependency, then the new
> >> version obviously breaks that old package. So, the breakage could be
> >> detected (and taken into account) automatically. Why do we need a manual
> >> action then?
> > 
> > Let me try to suggest you see from another side: the goal of the Breaks
> > field is to prevent a given combination of known broken packages to be
> > installed.
> > Currently autopkgtest blocks the migration of numpy, but if there wasn't
> > that block a Breaks should still be added, as the astropy in testing is
> > not compatible with the new numpy.  The fact that it hints britney to
> > trigger the right tests is just a "side effects", the Breaks should be
> > added nonetheless, theoretically; in practice, we rarely did it before
> > autopkgtest started blocking the testing migration.
> 
> I agree (with the explanation in your other mail) here; it just states
> the fact that they really don't go together very well (at least in
> situation similar to the specific CI test).

For what it's worth, I hit (AIUI) the same situation when I updated python-
bleach.  It broke python-readme-renderer.  I reuploaded python-bleach with the 
breaks and a new version of python-readme-renderer (which worked with the new 
bleach) and both migrated two days later (since they both had autopkgtests).

Scott K

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Thread

Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-05 15:20 +0100
  Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-05 15:40 +0100
    Re: Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-05 16:20 +0100
      Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-05 16:40 +0100
        Re: Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-05 20:50 +0100
          Re: Numpy migration? Scott Kitterman <debian@kitterman.com> - 2019-01-05 21:00 +0100
          Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-06 01:40 +0100
            Re: Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-06 17:30 +0100
              Re: Numpy migration? Steffen Möller <steffen_moeller@gmx.de> - 2019-01-06 18:20 +0100
                Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-06 18:50 +0100
              Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-06 19:00 +0100
                Re: Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-07 09:30 +0100
                Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-07 17:30 +0100
                Re: Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-07 18:10 +0100
                Re: Numpy migration? Paul Gevers <elbrus@debian.org> - 2019-01-07 21:10 +0100
    Re: Numpy migration? Ole Streicher <olebole@debian.org> - 2019-01-05 16:40 +0100
      Re: Numpy migration? Mattia Rizzolo <mattia@debian.org> - 2019-01-05 16:50 +0100

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