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From: Piotr =?utf-8?Q?O=C5=BCarowski?= <piotr@debian.org>
Newsgroups: linux.debian.maint.python
Subject: Python 2 and PyPy module removal from Debian
Date: Wed, 24 Jul 2019 01:40:02 +0200
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Hi,

During DebConf19 we=C2=B9 have tried to figure out how to manage Python 2 a=
nd PyPy
module removal from Debian and below is our proposal.
After discussing it on this mailing list we plan to send an email to
debian-devel@l.d.o with a mass bug report and later an announcement about
Python 2.X / PyPy module removal with some hints about what to expect to
debian-devel-announce@l.d.o.

There's a release tracker set up for Python 2 removal:
https://release.debian.org/transitions/html/python2-rm.html
but we plan to report a bug for each package that uses Python 2 or PyPy.

All these bugs will get "py2removal" usertag and later one or more addition=
al
usertags - to make progress tracking a bit easier (release tracker is not
optimised for our case). Severity will be set to a RC one at some point so =
that
packages will be autoremoved from testing.

Additional tags we will use are:
=E2=80=A2 py2leaf - leaf package ready to be removed, i.e. without (build-)=
dependencies
  (including Recommends) in Debian main,
=E2=80=A2 py3available - Python 3 support is available upstream, package ne=
eds an
  update in Debian,
=E2=80=A2 py3noport - there's no upstream support for Python 3, needs a por=
t done by us
  or package will be removed,
=E2=80=A2 py2keep - package that should not be removed for now (popcon >100=
0 by
  default). Please don't add this usertag without discussing it on the mail=
ing
  list first,
=E2=80=A2 py2rm - packages that we will remove from Debian due to low popco=
n, etc.
  - all packages with popcon <100 will get this one by default

Each bug will mention wiki help page (which we invite you to improve):
https://wiki.debian.org/Python/2Removal


documentation
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Please keep the python-foo-doc package. Do not rename it to
python3-foo-doc. If python-foo was providing documentation: move it to
python3-foo or create python-foo-doc (not python3-foo-doc!) binary package.
If your package uses python-sphinx to build docs: replace it with
python3-sphinx.


missing dh-python build dependency
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D
There are =E2=89=8862=C2=B2 packages that use old dh_python2 helper (the on=
e provided by
python package). This helper will be removed in few months. Please add
dh-python to Build-Depends (if your package cannot be upgraded to Python 3 =
or
removed from Debian). Bug reports will be reported soon for these packages.

There are =E2=89=8811=C2=B2 packages that use dh_python3 but do not depend =
on dh-python.
python3 package will stop depending on dh-python soon, so please add missing
dependency.


Boost
=3D=3D=3D=3D=3D
In the next Boost transition Python 2 and Python 3 will get separate -dev
packages. Please make sure you build-depend on the right one (and remove
Python 2.X support if possible).


DPMT / PAPT
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
No need to wait for a bug report. If you have a leaf package, remove it now.
If you're not a DD, do it in the git repo and ping Piotr.


[=C2=B9] Dimitri, Matthias, Piotr, Stefano, Thomas
[=C2=B2] https://lintian.debian.org/tags/missing-build-dependency-for-dh_-c=
ommand.html

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