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gh-99578: Fix refleak in _imp.create_builtin() (GH-99642)

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Fix a reference bug in _imp.create_builtin() after the creation of
the first sub-interpreter for modules "builtins" and "sys".
(cherry picked from commit cb2ef8b2ac)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2022-11-21 03:43:23 -08:00 • committed by GitHub
parent bb4c091583
commit 9dda9020ab
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3 changed files with 35 additions and 1 deletions
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Python/import.c
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@ -978,7 +978,8 @@ create_builtin(PyThreadState *tstate, PyObject *name, PyObject *spec)
if (_PyUnicode_EqualToASCIIString(name, p->name)) {
if (p->initfunc == NULL) {
/* Cannot re-init internal module ("sys" or "builtins") */
return PyImport_AddModuleObject(name);
mod = PyImport_AddModuleObject(name);
return Py_XNewRef(mod);
}
mod = _PyImport_InitFunc_TrampolineCall(*p->initfunc);
if (mod == NULL) {