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[3.15] gh-142349: Simplify lazy import resolution (GH-158282) - #158569

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[3.15] gh-142349: Simplify lazy import resolution (GH-158282)#158569
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@pablogsal pablogsal commented Oct 1, 2026 •
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Backport #158282 (a6a63b6) to 3.15 so lazy import fixes use the same resolution code as main. The 3.15 conflicts are resolved, the interpreter files are regenerated, and the ABI snapshot is updated for the removed private helpers and the changed return type of _PyDict_LoadGlobalStackRef.

The debug build passes test_lazy_import, test_import, test_importlib, test_module, test_dict, test_capi, and test_sys (3,268 tests).

@pablogsal @encukou @hugovk
[3.15] pythongh-142349: Simplify lazy import resolution (pythonGH-158282
c9ca51c 
)

Backport the shared lazy import resolver to Python 3.15, regenerate
interpreter files, and update the ABI snapshot.

Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
@bedevere-app bedevere-app Bot added the type-feature A feature request or enhancement label Oct 1, 2026
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@pablogsal pablogsal reopened this Oct 1, 2026
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pablogsal marked this pull request as ready for review October 1, 2026 16:25
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pablogsal requested a review from hugovk October 1, 2026 16:26
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pablogsal enabled auto-merge (squash) October 1, 2026 16:26
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Documentation build overview

📚 cpython-previews | 🛠️ Build #34881339 | 📁 Comparing c9ca51c against main (82fcaf8)

  🔍 Preview build  

148 files changed · + 1 added · ± 142 modified · - 5 deleted

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± Modified

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pablogsal merged commit 021f634 into python:3.15 Oct 1, 2026
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pablogsal deleted the backport-158282-3.15-land-20261001 branch October 1, 2026 16:56
@ddorian ddorian mentioned this pull request Oct 2, 2026
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@Yhg1s Yhg1s mentioned this pull request Oct 2, 2026
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