(This is a follow-up to gh-103092 and gh-104108.)

It may be worth having a test that tries importing every stdlib module in a subinterpreter that has its own GIL. This would ensure that all our builtin/extension modules are isolated (implement multi-phase init and have a Py_MOD_PER_INTERPRETER_GIL_SUPPORTED slot).

(Such a test should fail until gh-103092 is finished.)

Linked PRs

• GH-104289: Test importing all stdlib modules in subinterpreters #133392