fix: use fork context for chroot in python 3.14
Metadata
Current evaluation
Merged fix for Python 3.14 compatibility by explicitly using the fork start method in chroot(). This preserves parent state inheritance lost due to Python's new forkserver default. Resolves #1642 after passing all CI checks and receiving two approvals.
Suggested action: —
No scores available.
Issue body
Python 3.14 changed the Linux default from `fork` to `forkserver`,
so the child process no longer inherits the parent’s state such as
monkeypatched chdir or chroot. Explicitly request the `fork` start
method inside `chroot()` to keep the same behavior across all
supported Python versions.
Fixes #1642
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- [ ] Have you successfully run `make lint && make test`?
- [ ] Have you added an entry to the changelog (`docs/reference/changelog.rst`)?
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Evaluation history
| Date | Model | Scores | Action | Summary |
|---|---|---|---|---|
| qwen/qwen3.6-35b-a3b | — | — | Merged fix for Python 3.14 compatibility by explicitly using the fork start method in chroot(). This preserves parent state inheritance lost due to Python's new forkserver default. Resolves #1642 after passing all CI checks and receiving two approvals. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
5
Complexity:
15
Confidence:
95
|
needs review | Explicitly requests fork start method in chroot() to maintain compatibility with Python 3.14's new forkserver default. Approved by two reviewers, CI passing, pending two slow tests, 2 unresolved comments. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
0
Complexity:
10
Confidence:
95
|
needs review | Addresses Python 3.14 forkserver default breaking chroot state inheritance by explicitly requesting fork context. Currently approved by one reviewer with passing CI checks and several pending jobs. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
5
Complexity:
15
Confidence:
90
|
needs review | Fixes Python 3.14 forkserver default breaking chroot by explicitly using fork context. Currently awaiting maintainer review with CI tests pending. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
5
Complexity:
20
Confidence:
90
|
needs review | Addresses Python 3.14 multiprocessing default change by explicitly using fork context in chroot() to preserve state. Currently awaiting maintainer review and CI completion. | |
| qwen/qwen3.6-35b-a3b |
Staleness:
5
Complexity:
15
Confidence:
90
|
needs review | Updates chroot() to explicitly use the fork start method, addressing Python 3.14's default shift to forkserver which broke state inheritance. Currently pending maintainer review and CI completion. |
Update history
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