etc: teams/python: Add tiers manifest files.

Tiers manifest files are to help planing packages update in advance.

- 1-3 :: Packages with high impact ratio and mainly updated on
         the python-team branch.
- 4 :: Packages with high number of inputs, building which ensure the
       health of large portion of the graph.
- 5 :: All leaf packages which safe to update directly on master branch.

They may be combined to query for substitute availability during work on
the branch:

    for t in $(seq 5)
    do
        guix time-machine --branch=python-team -- \
            weather --display-missing \
            --substitute-urls=https://ci.guix.gnu.org \
            --manifest="etc/teams/python/python-tier-${t}-manifest.scm"
    done

* etc/teams/python/python-tier-1-manifest.scm: New file.
* etc/teams/python/python-tier-2-manifest.scm: New file.
* etc/teams/python/python-tier-3-manifest.scm: New file.
* etc/teams/python/python-tier-4-manifest.scm: New file.
* etc/teams/python/python-tier-5-manifest.scm: New file.

Fixes: guix/guix#9584
Merges: guix/guix!9601
Reviewed-by: Nicolas Graves <ngraves@ngraves.fr>

1 files changed, 39 insertions, 0 deletions

diff --git a/etc/teams/python/python-tier-2-manifest.scm b/etc/teams/python/python-tier-2-manifest.scm
new file mode 100644
index 00000000000..1d6bf1d7833
--- /dev/null
+++ b/etc/teams/python/python-tier-2-manifest.scm
@@ -0,0 +1,39 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2026 Sharlatan Hellseher <sharlatanus@gmail.com>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; This manifest is a list of packages that user care about (collected via an
+;;; online form).  It corresponds to the “Important packages” of GCD 005.
+
+(specifications->manifest
+ (list "python-lxml"
+       "python-sortedcontainers"
+       "python-hypothesis"
+       "python-elementpath"
+       "python-hatch-fancy-pypi-readme"
+       "python-attrs-bootstrap"
+       "python-xmlschema"
+       "python-pytest"
+       "python-cython"
+       "python-pytest-asyncio"
+       "python-pytest-mock"
+       "python-filelock"
+       "python-execnet"
+       "python-pytest-xdist"
+       "python-markupsafe"
+       "python-pyyaml"
+       "python-ply"))