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bpo-44050: Extension modules can share state when they don't support sub-interpreters. #27794

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Merged
miss-islington merged 5 commits into from
Oct 5, 2021
Merged

bpo-44050: Extension modules can share state when they don't support sub-interpreters. #27794

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4ffadb4
Extension modules created from PyModule_Create() can share state
shihai1991 Aug 17, 2021
2d2165c
apply petr's comment
shihai1991 Aug 17, 2021
70b7861
apply victor's comment
shihai1991 Aug 21, 2021
d53e2dd
add a NEWS entry
shihai1991 Sep 7, 2021
eb9b40d
Update Misc/NEWS.d/next/Core and Builtins/2021-09-08-00-30-09.bpo-440…
encukou Oct 5, 2021
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4 changes: 3 additions & 1 deletion Python/import.c
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Original file line number Diff line number Diff line change
Expand Up @@ -441,7 +441,9 @@ _PyImport_FixupExtensionObject(PyObject *mod, PyObject *name,
return -1;
}

if (_Py_IsMainInterpreter(tstate->interp)) {
// bpo-44050: Extensions and def->m_base.m_copy can be updated
// when the extension module doesn't support sub-interpreters.
if (_Py_IsMainInterpreter(tstate->interp) || def->m_size == -1) {
if (def->m_size == -1) {
if (def->m_base.m_copy) {
/* Somebody already imported the module,
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