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Title: gh-144851: Fix `__lazy_import__` crash with user-defined filters by johnslavik · Pull Request #144852 · python/cpython · GitHub

Open Graph Title: gh-144851: Fix `__lazy_import__` crash with user-defined filters by johnslavik · Pull Request #144852 · python/cpython

X Title: gh-144851: Fix `__lazy_import__` crash with user-defined filters by johnslavik · Pull Request #144852 · python/cpython

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Open Graph Description: Writing a test shortly, still in progress! Issue: __lazy_import__ crashes with user-defined filters #144851

X Description: Writing a test shortly, still in progress! Issue: __lazy_import__ crashes with user-defined filters #144851

Opengraph URL: https://github.com/python/cpython/pull/144852

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Feb 15, 2026https://github.com/python/cpython/pull/144852#issue-3944987687
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__lazy_import__ crashes with user-defined filters #144851https://github.com/python/cpython/issues/144851
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Fix __lazy_import__ crashhttps://github.com/python/cpython/pull/144852/commits/5a7a4f29fcba0a9b07f12f7f3d2f6b15b0c02ec4
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Add the crashing test casehttps://github.com/python/cpython/pull/144852/commits/c0323cccf46cc9cc1a692e17d7fb9783f8b2d7cd
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Add invariant checkhttps://github.com/python/cpython/pull/144852/commits/a23d40e9adc6aba81f4ff17db7f301e3083dab19
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Add a test that obviously failshttps://github.com/python/cpython/pull/144852/commits/cbcd0b90274576a207ca7dc7670cd90ce924e144
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Revert "Add a test that obviously fails"https://github.com/python/cpython/pull/144852/commits/d2f709de1e827c1865532f9fe2dd33fde88057d8
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TESTSUBDIRS missing some test directories #98822 https://github.com/python/cpython/issues/98822
We don't run test_lazy_imports #145334 https://github.com/python/cpython/issues/145334
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Merge branch 'main' to fix conflictshttps://github.com/python/cpython/pull/144852/commits/7aa1cee590236a29c8516339048fba96fb9abeb2
7aa1ceehttps://github.com/python/cpython/pull/144852/commits/7aa1cee590236a29c8516339048fba96fb9abeb2
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Merge branch 'main' to fix conflicts (actually this time)https://github.com/python/cpython/pull/144852/commits/e44c378c36655d7e54172ccc011b4797f25bf241
e44c378https://github.com/python/cpython/pull/144852/commits/e44c378c36655d7e54172ccc011b4797f25bf241
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Fixup lazy import after mergehttps://github.com/python/cpython/pull/144852/commits/4803e61f5adf8da616999a4d30c7e18ce588957d
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