PEP 739 `build-details.json` is missing on some platforms
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Description
Bug report
Bug description:
PEP 739 requires:
Starting from Python 3.14, a file named build-details.json following the format specified in this PEP, or a future version, MUST be installed in the platform-independent standard library directory (stdlib, eg. /usr/lib/python3.14/build-details.json), UNLESS unfeasible due to technical limitations.
It seems the Windows implementation of this didn't happen (c.f. @zooba's comment). Marking as a potential release blocker, cc @hugovk for opinion vs delaying to 3.14.1.
A
CPython versions tested on:
3.14
Operating systems tested on:
Windows
Linked PRs
- gh-138490
- gh-139302
- gh-139557
- gh-149153
- gh-149878
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Read PEP 739 and reproduce the missing build-details.json behavior on Windows with Python 3.14. Review the linked pull requests to understand the work already attempted; done means the required file is installed in the platform-independent standard library directory on supported Windows builds.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- build-system, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 25/100