GeezerVison is showing github.com — Backport gh-146325: guard the fork test with requires_fork by jaraco · Pull Request #551 · python/importlib_metadata
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jaraco
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Oct 22, 2026
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Ports python/cpython#146330 back upstream, closing the only drift between the cpython branch and CPython main.
Background
CPython's Lib/test/test_importlib/metadata/test_zip.py picked up a @requires_fork() guard on test_fastpath_cache_cleared_in_forked_child to fix the WASM/Emscripten buildbot (gh-146325). Under Emscripten multiprocessing.get_all_start_methods() advertises fork, so the test's existing skipUnless doesn't fire and the test blows up in node. That left the two trees one hunk apart.
Changes
The CPython commit cherry-picked as-is (authorship preserved), with the paths and the package import resolved for this tree. requires_fork comes straight from test.support, which is already a dependency of these tests and supplies it on every Python this project supports.
No newsfragment: the change is test-only and not user-facing.
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…eared_in_forked_child (#146330)
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