Bug 2378463

Following the guide, I converted the spec file but then ran into this:

No match for argument: python3dist(gi)
No match for argument: python3dist(gi-repository-gdk)
No match for argument: python3dist(gi-repository-gio)
No match for argument: python3dist(gi-repository-glib)
No match for argument: python3dist(gi-repository-gobject)
No match for argument: python3dist(gi-repository-gst)
No match for argument: python3dist(gi-repository-gstpbutils)
No match for argument: python3dist(gi-repository-gtk)
No match for argument: python3dist(gi-repository-notify)
No match for argument: python3dist(gi-repository-pango)
No match for argument: python3dist(gi-repository-unity)

Obviously these were not required with the previous method. Has upstream required this in error?

Running https://pypi.org/project/pyprojectize/1a6/ on the spec produces this diff:

diff --git a/soundconverter.spec b/soundconverter.spec
index c6c6444..0139ed0 100644
--- a/soundconverter.spec
+++ b/soundconverter.spec
@@ -13,7 +13,6 @@ BuildArch:      noarch
 
 BuildRequires:  gcc
 BuildRequires:  python3-devel
-BuildRequires:  python3-setuptools
 BuildRequires:  python3-distutils-extra
 BuildRequires:  python3-gobject-base
 BuildRequires:  desktop-file-utils
@@ -46,12 +45,16 @@ conversion. It can also extract the audio from videos.
 %autosetup -p1
 
 
+%generate_buildrequires
+%pyproject_buildrequires
+
+
 %build
-%py3_build
+%pyproject_wheel
 
 
 %install
-%py3_install
+%pyproject_install
 
 mkdir -p %{buildroot}/usr/share/locale
 mv build/mo/* %{buildroot}/usr/share/locale/
@@ -80,7 +83,7 @@ rm -f %{buildroot}%{_datadir}/glib-2.0/schemas/gschemas.compiled
 %{_docdir}/%{name}/
 %{_metainfodir}/%{name}.appdata.xml
 %{python3_sitelib}/%{name}
-%{python3_sitelib}/%{name}-*.egg-info
+%{python3_sitelib}/%{name}-*.dist-info
 
 
 %changelog



Which then results in (from %generate_buildrequires):

Handling gi from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi
Handling gi.repository.GLib from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.GLib
Handling gi.repository.GObject from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.GObject
Handling gi.repository.Gdk from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Gdk
Handling gi.repository.Gio from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Gio
Handling gi.repository.Gst from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Gst
Handling gi.repository.GstPbutils from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.GstPbutils
Handling gi.repository.Gtk from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Gtk
Handling gi.repository.Notify from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Notify
Handling gi.repository.Pango from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Pango
Handling gi.repository.Unity from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: gi.repository.Unity
Handling pkg_resources from hook generated metadata: Requires (soundconverter)
Requirement not satisfied: pkg_resources


Results in:

No match for argument: python3dist(gi)
No match for argument: python3dist(gi-repository-gdk)
No match for argument: python3dist(gi-repository-gio)
No match for argument: python3dist(gi-repository-glib)
No match for argument: python3dist(gi-repository-gobject)
No match for argument: python3dist(gi-repository-gst)
No match for argument: python3dist(gi-repository-gstpbutils)
No match for argument: python3dist(gi-repository-gtk)
No match for argument: python3dist(gi-repository-notify)
No match for argument: python3dist(gi-repository-pango)
No match for argument: python3dist(gi-repository-unity)
No match for argument: python3dist(pkg-resources)

It seems that the setuptools.build_meta:__legacy__ backend generates this metadata when the prepare_metadata_for_build_wheel() hook is called

Requires: gi
Requires: gi.repository.GLib
Requires: gi.repository.GObject
Requires: gi.repository.Gdk
Requires: gi.repository.Gio
Requires: gi.repository.Gst
Requires: gi.repository.GstPbutils
Requires: gi.repository.Gtk
Requires: gi.repository.Notify
Requires: gi.repository.Pango
Requires: gi.repository.Unity
Requires: pkg_resources


This is likely some magic feature of https://launchpad.net/python-distutils-extra which turns imports into Requires... ?

-------------


The same metadata is currently present in /usr/lib/python3.14/site-packages/soundconverter-4.0.5-py3.14.egg-info/PKG-INFO from soundconverter-0:4.0.5-6.fc43.noarch so this isn't new. The question is, why this isn't picked up by the Python runtime dependency generator already....


Oh. The runtime dependency generator only considers Requires-Dist: https://packaging.python.org/en/latest/specifications/core-metadata/#requires-dist-multiple-use

While apparently, %pyproject_buildrequires also considers Requires: https://packaging.python.org/en/latest/specifications/core-metadata/#requires (which indeed lists import names, not distribution names)


%pyproject_buildrequires explicitly considers both Requires-Dist and Requires:

https://src.fedoraproject.org/rpms/pyproject-rpm-macros/blob/570b5a6ee6015c9cdb86f649b9dbdac93a0c4531/f/pyproject_buildrequires.py#_312


This is obviously a nasty bug in %pyproject_buildrequires that no other repackage has hit yet, because nothing really uses this metadata field.

https://src.fedoraproject.org/rpms/pyproject-rpm-macros/pull-request/531 should fix this.

Thanks, I've subscribed to the PR.

Should I still need the Requires: after the transition or should they be picked up automagically?

The package has no Requires-Dist in the Python metadata, so you would still need the manual RPM Requires. Also likely for python3-setuptool (includes pkg_resources imported in bin/soundconverter).

FEDORA-2025-28dbdd52ff (pyproject-rpm-macros-1.18.3-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-28dbdd52ff

I meant python3-setuptools.

FEDORA-2025-28dbdd52ff (pyproject-rpm-macros-1.18.3-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Thanks for the assist!