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bpo-47182: Fix crash by named unicode characters after interpreter reinitialization (GH-32212)

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Automerge-Triggered-By: GH:tiran
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Christian Heimes 2022-03-31 18:14:50 +03:00 • committed by GitHub
parent 5458b7e39e
commit 44e915028d
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3 changed files with 10 additions and 0 deletions
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5
Lib/test/test_embed.py
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@ -343,6 +343,11 @@ class EmbeddingTests(EmbeddingTestsMixin, unittest.TestCase):
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, 'Tests passed\n' * INIT_LOOPS)
def test_ucnhash_capi_reset(self):
# bpo-47182: unicodeobject.c:ucnhash_capi was not reset on shutdown.
code = "print('\\N{digit nine}')"
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, '9\n' * INIT_LOOPS)
class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
maxDiff = 4096

2
Misc/NEWS.d/next/Core and Builtins/2022-03-31-15-37-02.bpo-47182.e_4SsC.rst Normal file
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@ -0,0 +1,2 @@
Fix a crash when using a named unicode character like ``"\N{digit nine}"``
after the main interpreter has been initialized a second time.

3
Objects/unicodeobject.c
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@ -16085,6 +16085,9 @@ _PyUnicode_Fini(PyInterpreterState *interp)
if (_Py_IsMainInterpreter(interp)) {
// _PyUnicode_ClearInterned() must be called before _PyUnicode_Fini()
assert(interned == NULL);
// bpo-47182: force a unicodedata CAPI capsule re-import on
// subsequent initialization of main interpreter.
ucnhash_capi = NULL;
}
_PyUnicode_FiniEncodings(&state->fs_codec);