diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-01-11-03-56-42.bpo-1635741.Vrjfuk.rst b/Misc/NEWS.d/next/Core and Builtins/2022-01-11-03-56-42.bpo-1635741.Vrjfuk.rst
new file mode 100644
index 00000000000000..ea1c1f1986b692
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-01-11-03-56-42.bpo-1635741.Vrjfuk.rst
@@ -0,0 +1 @@
+Port _ctypes extension module to multiphase initialization.
\ No newline at end of file
diff --git a/Modules/_ctypes/_ctypes.c b/Modules/_ctypes/_ctypes.c
index 96078c7726d597..624835f3d44bd3 100644
--- a/Modules/_ctypes/_ctypes.c
+++ b/Modules/_ctypes/_ctypes.c
@@ -5668,13 +5668,6 @@ wstring_at(const wchar_t *ptr, int size)
}
-static struct PyModuleDef _ctypesmodule = {
- PyModuleDef_HEAD_INIT,
- .m_name = "_ctypes",
- .m_doc = module_docs,
- .m_size = -1,
- .m_methods = _ctypes_module_methods,
-};
static int
@@ -5847,20 +5840,25 @@ _ctypes_mod_exec(PyObject *mod)
return 0;
}
+static struct PyModuleDef_Slot _ctypes_slots[] = {
+ {Py_mod_exec, _ctypes_mod_exec},
+ {0, NULL}
+};
+
+static struct PyModuleDef _ctypesmodule = {
+ PyModuleDef_HEAD_INIT,
+ .m_name = "_ctypes",
+ .m_doc = module_docs,
+ .m_size = 0,
+ .m_methods = _ctypes_module_methods,
+ .m_slots = _ctypes_slots,
+};
+
PyMODINIT_FUNC
PyInit__ctypes(void)
{
- PyObject *mod = PyModule_Create(&_ctypesmodule);
- if (!mod) {
- return NULL;
- }
-
- if (_ctypes_mod_exec(mod) < 0) {
- Py_DECREF(mod);
- return NULL;
- }
- return mod;
+ return PyModuleDef_Init(&_ctypesmodule);
}
/*
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