F35 Change proposal: Reduce dependencies on python3-setuptools (System-Wide Change)

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https://fedoraproject.org/wiki/Changes/Reduce_dependencies_on_python3-setuptools

== Summary ==
We'll do two things to reduce the number of Python packages
unnecessarily Requiring python3-setuptools:

# python3-devel will no longer Require python3-setuptools
# packages with console_scripts/gui_scripts entry points will no
longer automatically Require python3-setuptools


== Owner ==
* Name: [[User:Thrnciar|Tomáš Hrnčiar]]
* Name: [[User:Churchyard|Miro Hrončok]]
* Email: python-maint@xxxxxxxxxx


== Detailed Description ==
Historically, for over a decade, [https://pypi.org/project/setuptools/
setuptools] was omnipresent in Python packaging.
For that reason, the python3-devel package required python3-setuptools.
This is however changing, with
[https://www.python.org/dev/peps/pep-0517/ PEP517]- and
[https://www.python.org/dev/peps/pep-0518/ PEP518]-based upstream
packaging, setuptools changed to a very popular yet only optional way
of building packages, many upstreams switched to poetry or flit
instead.
Since we received multiple user reports about an unnecessary
dependency, we wanted to
[https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/message/ARFZB56ULRQNT3FEAC4YXXZDIUHG4M5P/
get rid of the dependency], but it was not possible until now.

We'll do the two following changes (neither one depends on the other):

=== python3-devel will stop Requiring python3-setuptools ===

When we wanted to remove the dependency before, we have encountered a
problem, which is best summarized in the Python spec file:
 # This is not "API" (packages that need setuptools should still
BuildRequire it)
 # However some packages apparently can build both with and without setuptools
 # producing egg-info as file or directory (depending on setuptools presence).
 # Directory-to-file updates are problematic in RPM, so we ensure setuptools is
 # installed when -devel is required.
 # See https://bugzilla.redhat.com/show_bug.cgi?id=1623914
 # See https://fedoraproject.org/wiki/Packaging:Directory_Replacement
 Requires: (python3-setuptools if rpm-build)

To avoid this problem, python3-devel currently requires
`(python3-setuptools if rpmbuild)` for backwards compatibility.
Other than that, python3-setuptools was always brought into the
buildroot transitively with python3-rpm-generators.
Since the [https://lists.fedoraproject.org/archives/list/python-devel@xxxxxxxxxxxxxxxxxxxxxxx/thread/57QTZGF7FJPE2QQSGPJ3RGI4G5SLN6BM/
generators no longer use setuptools but packaging] we can finally
remove the dependency.

Packages that don't BuildRequire python3-setuptools but use setuptools
during the build will fall into one of the following three categories:

* They will fail to build from source with errors like:
`ModuleNotFoundError: No module named 'setuptools'`.
* They will successfully build from source because they will fallback
to the standard library distutils module - their `.egg-info` directory
will become a text file instead, causing errors when RPM tries to
update the package (and they will possibly miss some runtime
dependencies because the metadata generated by distutils is not
complete).
* They will continue to build unchanged because one or more packages
they BuildRequire pulls in python3-setuptools transitively - at any
point in the future, this can change and either (1) or (2) will
happen.

We tested this change in the past when we
[https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/message/GCPGM34ZGEOVUHSBGZTRYR5XKHTIJ3T7/
asked] other maintainers to explicitly BuildRequire
python3-setuptools. Some of them responded, but many did not. Our
analysis was based on grepping sources for any mention of setuptools,
such as `import setuptools` or `from setuptools import `. Nowadays,
the same grep-based query showed us roughly the same number (~350) of
packages relying on python3-setuptools without BuildRequiring it. To
see the direct impact, we have also briefly removed the Requires from
python3-devel package used in testing
[https://copr.fedorainfracloud.org/coprs/g/python/python3.10/packages/
python3.10] in COPR. It revealed only 140 packages that fail to build
from the source because of the change, however many packages bring in
python3-setuptools transitively. Some of the packages might build
successfully even without python3-setuptools, because they fallback to
distutils (from the Python standard library) if dependency on
setuptools is not satisfied.

To avoid such problems we will:

* Mass update packages we analyzed as impacted to add the missing
BuildRequires on python3-setuptools.
* Do the change while doing the [[Changes/Python3.10|update from
Python 3.9 to Python 3.10]] so the path of the `.egg-info` changes
from `/usr/lib(64)/python3.9/site-packages/...egg-info` to
`/usr/lib(64)/python3.10/site-packages/...egg-info`, hence no longer
causing troubles on upgrades if some packages actually do change it
from directory to file (and changing it the other way around in the
future is safe).

==== How do we mass update the spec files ====

We plan to write a script to detect what notation for BuildRequires
definition each spec file uses.

Example of the most common occurrences:

 BuildRequires: python%{python3_pkgversion}-setuptools
 BuildRequires: %{py3_dist setuptools}
 BuildRequires: python3-setuptools
 BuildRequires: python3dist(setuptools)

We will try to keep the added BuildRequires as much consistent as
possible with the existing Python-related BuildRequires (including
e.g. whitespace). We will not bump the release or add a changelog
entry (the Python 3.10 rebuild will take care of it).  To show how the
proposed modifications will look like we plan to create a git
repository with all the spec files and commit the change there. The
diff will be shared on the devel and python-devel mailing lists, so
maintainers can easily see the upcoming change and can provide
feedback to us.

==== When do we update the spec files ====

We plan to mass update the spec files in the middle of April 2021, if
you wish to opt-out from the mass update, please let us know prior to
15th of April 2021.

==== What spec files we will update ====

Below is the list of packages we plan to add BuildRequires for
python3-setuptools to. If you wish to opt-out of this update, please
edit this page and move your package to the list of packages to be
ignored (listed below this one).

'''Packages to be updated:'''
* 0ad                  ignatenkobrain pcpa pwalter
* OpenMolcas           jussilehtola
* PyGreSQL             hhorak jmlich odubaj panovotn pkubat praiskup
* R2spec               pingou
* ViTables             tnorth zbyszek
* ansible-review       dcallagh ttrinks
* barman               slaanesh tsao
* blender              design-sw hobbes1069 ignatenkobrain kwizart
luya roma s4504kr slaanesh
* btrfs-progs          ignatenkobrain josef ngompa sandeen
* bumpversion          duriantang jdornak
* calypso              rathann
* cinch                greghellings
* commissaire-client   mbarnes smilner
* cppcheck             c72578 jussilehtola sgrubb
* cranc                lenkaseg
* crudini              apevec jruzicka pbrady
* cxxtest              mgieseki
* datanommer           ralph
* dlib                 bizdelnick luya
* ec2-hibinit-agent    davdunc
* electrum             tredaell
* fbthrift             dcavalca filbranden salimma
* fedora-messaging     abompard
* firefox              alexl caolanm erack gecko-maint jgrulich kalev
kengert mbarnes rhughes rstrode sharkcz stransky tpopela ueno xhorak
* folly                dcavalca filbranden salimma
* fontforge            frixxon kevin pnemade
* gajim                michich suraia
* gau2grid             jussilehtola
* gaupol               music
* gfal2-python         adev andreamanzi
* ginga                lupinix
* git-filter-repo      asn
* gns3-gui             kwizart
* gns3-net-converter   kwizart
* gns3-server          kwizart nucleo
* gpsd                 fab mlichvar ttorling
* h5py                 stevetraylen terjeros
* khard                mathstuf sdyroff
* kismon               fab
* koji                 ausil kevin mikem puiterwijk
* lammps               ellio167 junghans
* legofy               lkf williamjmorenor
* libcaca              hubbitus slaanesh thias
* libiptcdata          dcm hobbes1069 jchaloup
* libnuml              sagitter
* libreoffice          caolanm dtardon erack sbergmann
* lldb                 airlied daveisfera jankratochvil
sergesanspaille siddharths tstellar
* llvm                 dmalcolm ignatenkobrain jakub jistone kyle
scottt sergesanspaille siddharths tstellar
* llvm10               sergesanspaille tstellar
* llvm11               sergesanspaille tstellar
* llvm7.0              jistone petersen sergesanspaille tstellar
* llvm9.0              jistone sergesanspaille tstellar
* mercurial            kiilerix nbecker pstodulk
* mod_wsgi             jdornak jkaluza jorton lmacken mrunge
* moose                zbyszek
* mypaint              avsej
* mysql-connector-python hhorak hubbitus hvad mschorm
* nototools            mfabian pwu
* officeparser         rebus
* offlineimap          cicku dodji sergesanspaille teuf
* openbabel            alexpl jussilehtola rathann
* percol               hubbitus
* poetry               churchyard thrnciar
* poezio               fantom louizatakk
* porcupine            kushal
* protontricks         atim
* protonvpn-cli        calexandru2018 jflory7
* prunerepo            frostyx praiskup
* pyaudio              chkr
* pyhunspell           mfabian
* pyodbc               fjanus hhorak
* pyscard              orion sjenning
* pyserial             stingray
* python-CommonMark    jujens
* python-GridDataFormats rathann
* python-OBD           rathann
* python-Pyped         uggla
* python-Rtree         volter
* python-acoustid      terjeros
* python-agate         jujens
* python-aiodns        fantom
* python-ansicolors    fab
* python-apprise       lead2gold
* python-apsw          cicku dfateyev maci
* python-arviz         sergiopr
* python-astroplan     sergiopr
* python-astropy-healpix lupinix
* python-astroquery    lupinix
* python-astroscrappy  lupinix
* python-asttokens     zbyszek
* python-audioread     terjeros
* python-autobahn      fab jujens
* python-autopep8      mrunge ndipanov
* python-b2sdk         jonny
* python-bloom         cottsay rmattes
* python-blosc         tnorth zbyszek
* python-box           dmsimard fab
* python-btchip        jonny xenithorb
* python-cached_property adamwill immanetize
* python-carbon        jsteffan piotrp
* python-ccdproc       lupinix
* python-certbot-apache nb
* python-chai          kevin pingou ralph
* python-cmigemo       hubbitus
* python-colorspacious rathann
* python-construct     moezroy terjeros
* python-contextlib2   abompard pingou ralph tjikkun
* python-cookiecutter  chedi wakko666
* python-crochet       abompard
* python-css-parser    zbyszek
* python-dbfread       jujens
* python-debrepo       ktdreyer
* python-decopatch     zbyszek
* python-descartes     qulogic
* python-dialog        mjakubicek noodles raphgro sundaram zbyszek
* python-dijitso       limb
* python-django-contact-form mrunge
* python-django-health-check dmsimard
* python-django-registration orphan
* python-django-reversion mrunge
* python-django-tagging jdornak mrunge piotrp
* python-django-tastypie bkabrda cquad mrunge stevetraylen
* python-docx          kushal124
* python-dtfabric      fab
* python-dukpy         zbyszek
* python-editorconfig  barracks510
* python-ephem         fab
* python-et_xmlfile    jujens
* python-etcd          mbarnes smilner
* python-fasteners     mrunge
* python-ffc           zbyszek
* python-fields        cottsay
* python-fisx          zbyszek
* python-fitsio        lupinix
* python-flake8-docstrings cottsay
* python-flask-gravatar devrim orphan
* python-flask-htmlmin devrim iztokf
* python-flask-paranoid devrim orphan
* python-flask-rstpages rmarko
* python-flask-security devrim orphan
* python-flask-sphinx-themes devrim orphan
* python-flask-wtf-decorators frostyx
* python-formats       uggla
* python-fypp          rathann
* python-gevent-eventemitter atim
* python-google-i18n-address pwouters
* python-googletrans   lyessaadi
* python-graphql-relay fab
* python-heapdict      qulogic
* python-html5-parser  kevin
* python-htmlmin       jujens
* python-humblewx      rickardlindberg
* python-hupper        kevin
* python-i3ipc         alebastr
* python-inotify       jfilak stevetraylen terjeros
* python-jep           raphgro
* python-jinja2-cli    jujens
* python-jinja2-time   chedi wakko666
* python-jnius         raphgro
* python-joblib        besser82 ignatenkobrain sergiopr
* python-jsonmodels    oanson
* python-jsonrpclib    ihrachyshka jonny
* python-kerberos      rcritten simo
* python-kitchen       kevin pingou ralph
* python-landslide     echevemaster salimma
* python-lark-parser   totol
* python-leather       jujens
* python-libsass       nonamedotc
* python-libusb1       jonny
* python-lmdb          jruzicka pspacek tkrizek
* python-logfury       jonny
* python-makefun       zbyszek
* python-managesieve   stevetraylen
* python-matrix-nio    ankursinha
* python-meld3         kevin stevetraylen tsao
* python-minibelt      uggla
* python-mmtf          rathann
* python-mnemonic      jonny
* python-music21       zbyszek
* python-mwclient      adamwill rdieter tuxbrewr
* python-myhdl         filiperosset
* python-nbclient      nonamedotc
* python-nbxmpp        michich suraia
* python-networkmanager jdulaney
* python-notario       ktdreyer
* python-oauth2        ignatenkobrain pjp spot sundaram
* python-openoffice    sharkcz
* python-ouimeaux      kni
* python-pandas-datareader sergiopr
* python-paste-script  andreamanzi
* python-patsy         sergiopr
* python-pbkdf2        jonny
* python-pecan-notario ktdreyer
* python-pelican       firemanxbr mrunge
* python-pexpect       amcnabb fabiand ignatenkobrain radez swt2c tomspur
* python-plaster-pastedeploy abompard
* python-plumbum       greghellings lorenzodalrio
* python-poetry-core   churchyard thrnciar
* python-polib         cicku dchen diegobz dshea ivazquez moezroy suanand
* python-precis_i18n   michich
* python-proteus       sharkcz
* python-publicsuffix2 rathann
* python-pulsectl      pfrields
* python-pvc           raphgro
* python-pycares       fantom
* python-pycha         potty sharkcz
* python-pygeoip       kevin ralph
* python-pylons-sphinx-themes abompard
* python-pymc3         sergiopr
* python-pynn          ankursinha
* python-pyotp         icon
* python-pypng         kevin ralph
* python-pyqtgraph     swt2c
* python-pyramid_sawing abompard
* python-pysb          zbyszek
* python-pysignals     kni
* python-pyswip        pampelmuse
* python-pyte          terjeros
* python-pytest-astropy-header sergiopr
* python-pytest-cases  zbyszek
* python-pytest-harvest zbyszek
* python-pytest-mock   fab jujens
* python-pytest-repeat cottsay
* python-pytest-steps  zbyszek
* python-pytest-watch  jujens
* python-pyvo          lupinix
* python-readthedocs-sphinx-ext jjames
* python-recommonmark  jujens
* python-relatorio     sharkcz
* python-restructuredtext-lint jujens
* python-requests-cache codeblock hobbes1069
* python-retrying      apevec
* python-rmtest        lberk mgoodwin nathans
* python-rosdep        cottsay rmattes thofmann
* python-sanction      kevin ralph
* python-scikit-learn  besser82 ignatenkobrain lupinix sergiopr
* python-scrapy        echevemaster
* python-setuptools-lint jdulaney
* python-shamir-mnemonic jonny
* python-simplemediawiki lmacken potty ralph
* python-slixmpp       fantom louizatakk
* python-smbc          twaugh zdohnal
* python-snappy        jujens
* python-social-auth-core cqi
* python-soupsieve     zbyszek
* python-spdx          jbertozzi
* python-spdx-lookup   jbertozzi
* python-sphinxcontrib-bibtex jjames
* python-statsd        pabelanger tdecacqu
* python-steam         atim
* python-tables        tnorth zbyszek
* python-tempdir       rathann
* python-timeout-decorator jcapitao
* python-tinydb        suanand
* python-tortilla      uggla
* python-tqdm          ignatenkobrain sgallagh
* python-tree-format   chedi wakko666
* python-trezor        jonny
* python-twilio        mich181189
* python-txaio         fab jujens
* python-unidecode     pjp sundaram
* python-unidiff       dcallagh
* python-upt-cpan      jbertozzi
* python-upt-fedora    jbertozzi
* python-upt-pypi      jbertozzi
* python-upt-rubygems  jbertozzi
* python-urwidtrees    ttomecek
* python-vdf           atim
* python-wand          barracks510
* python-watchdog      jsteffan jujens pingou
* python-webencodings  abompard
* python-webpy         mrunge
* python-wsaccel       jujens
* python-xlwt          leamas moezroy rathann
* python-xvfbwrapper   mrunge totol
* python-yarl          fab ignatenkobrain
* python-zstandard     rathann
* python3-postgresql   hhorak
* python3-pytest-asyncio jujens
* python3-saml         dcallagh tchaikov
* qemu                 berrange bonzini crobinso dwmw2 ehabkost
jforbes lkundrak quintela rjones
* rdkit                giallu
* root                 ellert
* rpmspectool          nphilipp
* salt                 blarson dmurphy18 krionbsd
* sepolicy_analysis    vmojzis
* solaar               brouhaha rathann richardfearn tibbs
* spec2scl             jstanek
* starcal              hedayat
* stomppy              stevetraylen
* sugar-speak          callkalpa chimosky pbrobinson tuxbrewr
* swid-tools           adelton
* swift-lang           tachoknight
* terminator           dmaphy mattrose ohaessler
* texlive-base         spot
* toot                 alciregi
* translate-toolkit    cicku dwayne petersen suanand
* trellis              lkundrak somlo
* tryton               sharkcz
* trytond              sharkcz
* trytond-account      sharkcz
* trytond-account-be   sharkcz
* trytond-account-de-skr03 sharkcz
* trytond-account-invoice sharkcz
* trytond-account-invoice-history sharkcz
* trytond-account-invoice-line-standalone sharkcz
* trytond-account-product sharkcz
* trytond-account-statement sharkcz
* trytond-account-stock-anglo-saxon sharkcz
* trytond-account-stock-continental sharkcz
* trytond-analytic-account sharkcz
* trytond-analytic-invoice sharkcz
* trytond-analytic-purchase sharkcz
* trytond-analytic-sale sharkcz
* trytond-company      sharkcz
* trytond-company-work-time sharkcz
* trytond-country      sharkcz
* trytond-currency     sharkcz
* trytond-dashboard    sharkcz
* trytond-google-maps  sharkcz
* trytond-ldap-authentication sharkcz
* trytond-party        sharkcz
* trytond-party-siret  sharkcz
* trytond-product      sharkcz
* trytond-product-cost-fifo sharkcz
* trytond-product-cost-history sharkcz
* trytond-product-price-list sharkcz
* trytond-project      sharkcz
* trytond-project-plan sharkcz
* trytond-project-revenue sharkcz
* trytond-purchase     sharkcz
* trytond-purchase-invoice-line-standalone sharkcz
* trytond-sale         sharkcz
* trytond-sale-opportunity sharkcz
* trytond-sale-price-list sharkcz
* trytond-stock        sharkcz
* trytond-stock-forecast sharkcz
* trytond-stock-inventory-location sharkcz
* trytond-stock-location-sequence sharkcz
* trytond-stock-product-location sharkcz
* trytond-stock-supply sharkcz
* trytond-stock-supply-day sharkcz
* trytond-timesheet    sharkcz
* ubertooth            avsej
* uhd                  jskarvad
* upt                  jbertozzi
* uwsgi                kad
* watchman             dcavalca filbranden salimma
* wine-mono            mooninite
* winpdb               spot
* xrootd               ellert simonm
* xtensor-python       sergesanspaille
* yawn                 jsafrane miminar vcrhonek

'''Packages to be ignored:'''
* fontforge - false positive
* qemu - false positive
* xrootd - false positive

=== Packages with console_scripts/gui_scripts entry points will no
longer automatically Require python3.Xdist(setuptools) ===

Packages that use the `console_scripts` or `gui_scripts` entry points
used to generate scripts for them that imported `pkg_resources` (from
setuptools) on runtime and thus all such packages needed to Require
setuptools on runtime. This is an example of such generated script
from Fedora 32:

 #!/usr/bin/python3
 # EASY-INSTALL-ENTRY-SCRIPT: 'fedpkg==1.40','console_scripts','fedpkg'
 __requires__ = 'fedpkg==1.40'
 import re
 import sys
 from pkg_resources import load_entry_point

 if __name__ == '__main__':
     sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
     sys.exit(
         load_entry_point('fedpkg==1.40', 'console_scripts', 'fedpkg')()
     )

The Python dist RPM dependency generator
(`/usr/lib/rpm/fileattrs/pythondist.attr`) hence generated a Requires
on `python3.Xdist(setuptools)` for all packages with scripts like the
one above.

Starting from Python 3.8 and setuptools 47, this is no longer
required, because the scripts will use `importlib.metadata` from the
standard library instead of `pkg_resources` from setuptools. The
scripts now looks like this:

 #!/usr/bin/python3
 # EASY-INSTALL-ENTRY-SCRIPT: 'fedpkg==1.40','console_scripts','fedpkg'
 import re
 import sys

 # for compatibility with easy_install; see #2198
 __requires__ = 'fedpkg==1.40'

 try:
     from importlib.metadata import distribution
 except ImportError:
     try:
         from importlib_metadata import distribution
     except ImportError:
         from pkg_resources import load_entry_point
 ...

Since the scripts are generated during build, the packages no longer
need to Require setuptools on runtime.
The Python dist RPM dependency generator will no longer generate the
Requires on `python3.Xdist(setuptools)`.

The change is prepared in a pull request
(https://src.fedoraproject.org/rpms/python-rpm-generators/pull-request/38).
We plan to merge it as soon as it is ready. It only changes the
behavior for Python 3.10 or newer, hence it will take affect in the
Python 3.10 copr only, until Python is updated to 3.10 in Fedora
proper.

Packages that actually import from the `setuptools` or `pkg_resources`
module on runtime should explicitly require setuptools, but some of
the upstreams may not do that. We don't expect many packages
negatively affected by this, but since this is not strictly backwards
compatible, we are only planning to do it in Fedora 35+.

== Feedback ==
There was some discussion on various mailing list threads, but no
other alternatives were proposed.
* https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/thread/GCPGM34ZGEOVUHSBGZTRYR5XKHTIJ3T7/
* https://lists.fedoraproject.org/archives/list/python-devel@xxxxxxxxxxxxxxxxxxxxxxx/thread/GCPGM34ZGEOVUHSBGZTRYR5XKHTIJ3T7/
* https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx/thread/BL7XMXVEHSDZDMH22YET3I4EK66PK4NI/
* https://lists.fedoraproject.org/archives/list/python-devel@xxxxxxxxxxxxxxxxxxxxxxx/thread/BL7XMXVEHSDZDMH22YET3I4EK66PK4NI/

== Benefit to Fedora ==
>From [https://docs.fedoraproject.org/en-US/packaging-guidelines/#buildrequires
Fedora Packaging Guidelines]: ''It is important that your package list
all necessary build dependencies using the BuildRequires: tag.'' As
our testing showed, this is not true for many packages. Some of them
can successfully build either with or without setuptools (they use
try-except import and fallback to distutils from the standard
library). Such packages are especially dangerous when not
BuildRequiring setuptools -- they can produce different results
depending on the presence of setuptools: either an .egg-info metadata
directory (w/setuptools) or .egg-info text file (w/distutils). RPM has
troubles when [https://docs.fedoraproject.org/en-US/packaging-guidelines/Directory_Replacement/
upgrading directories to files].

== Scope ==
Some packages use distutils as a fallback in case setuptools is
unavailable. The problem is that setuptools generates egg.info
directory and distutils creates egg.info file. This would lead to
failures caused by the known issue of RPM that cannot change directory
to file. To avoid this we plan to do a mass spec update before we
upgrade Python to version 3.10. This way we ensure that path will be
correct after the mass rebuild.

* Proposal owners:
# Test affected packages in Copr.
# Do the mass spec update to introduce missing BuildRequire to them.

* Other developers: If your package requires setuptools on runtime,
make sure it specifies it explicitly. There should be no additional
work for developers other than that. There is a possibility that some
packages will slip through our grep based query and fail to build, but
we'll detect this in our testing Copr and fix them.

* Release engineering: not needed for this Change
* Policies and guidelines: already exist
* Trademark approval: not needed for this Change
* Alignment with Objectives: minimization


== Upgrade/compatibility impact ==
All affected packages needs rebuild after the mass spec update but
since we plan to do it with the upgrade to Python 3.10 we will rebuild
it altogether.
Users should not be affected by upgrades in any way.

== How To Test ==
This does not work yet, but will soon:
Interested testers can push explicit BuildRequire on setuptools to the
distgit and see in our
[https://copr.fedorainfracloud.org/coprs/g/python/python3.10/ Python
3.10 COPR] whether the package starts to build again. Webhook should
trigger rebuild automatically on new commit in rawhide branch.

== User Experience ==
Regular distro users shouldn't notice any change in system behaviour,
except for packages that use setuptools or pkg_resources on runtime
and fail to specify that dependency.
Such packages will fail to run with ModuleNotFoundErrors and should be
fixed by their maintainers.

== Dependencies ==
300+ packages will need to BuildRequire setuptools explicitly. This
will be done by the mass spec update.

== Contingency Plan ==
* Contingency mechanism: Commit removing python3-devel Requires on
`(python3-setuptools if rpmbuild)` will be reverted. The change in
Python dist RPM depndency generator will be reverted (This mechanisms
can be applied independently.).
* Contingency deadline: mass rebuild
* Blocks release? No

== Documentation ==
This page is a documentation, this is not a user facing change.




-- 
Ben Cotton
He / Him / His
Senior Program Manager, Fedora & CentOS Stream
Red Hat
TZ=America/Indiana/Indianapolis
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