…137413)

fix `default_builtin_hashes` in test_hashlib

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 <[email protected]>

These are tests to ensure behaviour introduced by GH-136189 is working as expected.

Co-authored-by: Mikhail Borisov <[email protected]>
Co-authored-by: Kumar Aditya <[email protected]>
Co-authored-by: Neil Schemenauer <[email protected]>

* 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 <[email protected]>