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Fix a bug caused by the garbage collector clearing weakrefs too early. The weakrefs in the ``tp_subclasses`` dictionary are needed in order to correctly invalidate type caches (for example, by calling ``PyType_Modified()``). Clearing weakrefs before calling finalizers causes the caches to not be correctly invalidated. That can cause crashes since the caches can refer to invalid objects. Defer the clearing of weakrefs without callbacks until after finalizers are executed.
Co-authored-by: Senthil Kumaran <senthil@python.org>
These are tests to ensure behaviour introduced by GH-136189 is working as expected. Co-authored-by: Mikhail Borisov <43937008+fxeqxmulfx@users.noreply.github.com> Co-authored-by: Kumar Aditya <kumaraditya@python.org> Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>
* gh-106320: Remove private _PyInterpreterState functions (#106335) Remove private _PyThreadState and _PyInterpreterState C API functions: move them to the internal C API (pycore_pystate.h and pycore_interp.h). Don't export most of these functions anymore, but still export functions used by tests. Remove _PyThreadState_Prealloc() and _PyThreadState_Init() from the C API, but keep it in the stable API. * Doc: minor change * Revert "Doc: minor change" This reverts commit ebfa093. * [Doc] Remove unnecessary quotes from typing (See Also section) * [Doc] Remove unnecessary quotes from typing --------- Co-authored-by: Victor Stinner <vstinner@python.org>
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