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flake8-pytest-style: Mark PT022 fixes as unsafe#26440

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flake8-pytest-style: Mark PT022 fixes as unsafe#26440
joshuavetos wants to merge 3 commits into
astral-sh:mainfrom
joshuavetos:main

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Summary

Changes the diagnostic fix applicability for rule PT022 (missing yield types / old-style yield fixtures) from a safe edit to an unsafe_edit.

Converting a yield to a return fundamentally alters execution flow, scope lifetimes, and teardown behavior. In certain contexts (e.g., when interacting with bindings like GDAL), this transformation can cause critical runtime failures such as segmentation faults. Forcing this to be an unsafe fix ensures that it will not be executed blindly during a standard --fix pass without explicit opt-in via --allow-unsafe-fixes.

Fixes #26332

Test Plan

Updated the companion snapshot test (PT022.snap) using insta to verify that the generated diagnostic now correctly appends the trailing note: note: This is an unsafe fix and may change runtime behavior. All relevant linter tests now pass cleanly.

@astral-sh-bot astral-sh-bot Bot requested a review from ntBre June 28, 2026 15:18

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PT022 gives a false positive with GDAL code

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