Bug 2453824

Summary:	python-ujson fails to build with setuptools_scm 10+
Product:	[Fedora] Fedora	Reporter:	Miro Hrončok <mhroncok>
Component:	python-ujson	Assignee:	Ben Beasley <code>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	code, igor.raits, mail, python-packagers-sig
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	python-ujson-5.12.0-2.fc45	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-04-16 10:26:57 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2412434, 2433833, 2451398

Description Miro Hrončok 2026-04-01 12:15:56 UTC

We are trying to python-setuptools_scm to version 10.x

https://src.fedoraproject.org/rpms/python-setuptools_scm/pull-request/39


This package fails to build with:

error: Installed (but unpackaged) file(s) found:
   /usr/lib64/python3.14/site-packages/src/ujson/python/version.h

https://copr.fedorainfracloud.org/coprs/churchyard/vcs-versioning/package/python-ujson/



See https://setuptools-scm.readthedocs.io/en/latest/changelog/#1000-2026-02-26

"""
Version files (write_to and version_file) are now written to the build directory during build_py instead of the source tree during version inference. This enables installing packages from read-only source directories (e.g., Bazel builds).

Path transformation is automatically applied for src/ layouts - a configured path like src/mypackage/_version.py is correctly written to mypackage/_version.py in the build directory based on the package_dir configuration.

To restore the old behavior of writing version files at inference time (useful for development workflows), set the environment variable SETUPTOOLS_SCM_WRITE_TO_SOURCE=1. https://github.com/pypa/setuptools-scm/issues/1252
"""

Comment 1 Miro Hrončok 2026-04-16 09:42:48 UTC

Do you need help fixing this? Please respond.

Comment 2 Ben Beasley 2026-04-16 10:01:47 UTC

I haven’t heard from Kushal in a long time. For about four years, I have been somewhat reluctantly keeping this package up to date as co-maintainer, since a few things I care about do depend on it.

It doesn’t seem like exporting SETUPTOOLS_SCM_WRITE_TO_SOURCE=1 (in any or all spec-file sections) prevents the creation of /usr/lib64/python3.14/site-packages/src/ujson/python/version.h. I don’t really understand what’s happening at a glance, and I don’t want to spend much time on this package, so I suppose I will just remove the unwanted %{python3_sitearch}/src/ directory in %install as a workaround.

Comment 3 Fedora Update System 2026-04-16 10:21:20 UTC

FEDORA-2026-1d2de06bc1 (python-ujson-5.12.0-2.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-1d2de06bc1

Comment 4 Miro Hrončok 2026-04-16 10:26:34 UTC

I heard from Kushal in person, but not wrt his Fedora packages :/

Thanks for the workaround.

Comment 5 Fedora Update System 2026-04-16 10:26:57 UTC

FEDORA-2026-1d2de06bc1 (python-ujson-5.12.0-2.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 6 Miro Hrončok 2026-04-17 12:13:29 UTC

> It doesn’t seem like exporting SETUPTOOLS_SCM_WRITE_TO_SOURCE=1 (in any or all spec-file sections) prevents the creation of /usr/lib64/python3.14/site-packages/src/ujson/python/version.h.

I reported https://github.com/pypa/setuptools-scm/issues/1364