Bug 2453825

Summary:	pywhispercpp fails to build with setuptools_scm 10+
Product:	[Fedora] Fedora	Reporter:	Miro Hrončok <mhroncok>
Component:	pywhispercpp	Assignee:	Manish Tiwari <matiwari>
Status:	NEW ---	QA Contact:
Severity:	unspecified	Docs Contact:
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Version:	rawhide	CC:	matiwari
Target Milestone:	---	Flags:	matiwari: mirror+
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Bug Blocks:	2412434, 2433833, 2451398

Description Miro Hrončok 2026-04-01 12:16:51 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/__pycache__/_version.cpython-314.opt-1.pyc
   /usr/lib64/python3.14/site-packages/__pycache__/_version.cpython-314.pyc
   /usr/lib64/python3.14/site-packages/_version.py

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



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 09:42:41 UTC

Do you need help fixing this? Please respond.

Comment 2 Manish Tiwari 2026-04-16 19:49:13 UTC

Hi, 
setting up env var SETUPTOOLS_SCM_WRITE_TO_SOURCE=1 doesn't help,

So I removed generated version file and bytecode to build it successfully with setuptools_scm 10
scratch-build: https://koji.fedoraproject.org/koji/taskinfo?taskID=144514253

Comment 3 Miro Hrončok 2026-04-17 11:48:40 UTC

You are not the first person who says SETUPTOOLS_SCM_WRITE_TO_SOURCE=1 doesn't help, I will investigate.

Comment 4 Miro Hrončok 2026-04-17 12:12:43 UTC

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