diff --git a/Misc/NEWS.d/next/Core and Builtins/2020-01-16-16-30-18.bpo-1635741.bLqfQb.rst b/Misc/NEWS.d/next/Core and Builtins/2020-01-16-16-30-18.bpo-1635741.bLqfQb.rst
new file mode 100644
index 00000000000000..c994066546f8ee
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2020-01-16-16-30-18.bpo-1635741.bLqfQb.rst
@@ -0,0 +1 @@
+Port _asyncio extension module to multiphase initialization (:pep:`489`).
\ No newline at end of file
diff --git a/Modules/_asynciomodule.c b/Modules/_asynciomodule.c
index 70da40a8a3b863..5d1c5a07ea5288 100644
--- a/Modules/_asynciomodule.c
+++ b/Modules/_asynciomodule.c
@@ -3372,76 +3372,80 @@ static PyMethodDef asyncio_methods[] = {
{NULL, NULL}
};
-static struct PyModuleDef _asynciomodule = {
- PyModuleDef_HEAD_INIT, /* m_base */
- "_asyncio", /* m_name */
- module_doc, /* m_doc */
- -1, /* m_size */
- asyncio_methods, /* m_methods */
- NULL, /* m_slots */
- NULL, /* m_traverse */
- NULL, /* m_clear */
- (freefunc)module_free /* m_free */
-};
-
-
-PyMODINIT_FUNC
-PyInit__asyncio(void)
+static int
+_asyncio_exec(PyObject *module)
{
- if (module_init() < 0) {
- return NULL;
- }
if (PyType_Ready(&FutureType) < 0) {
- return NULL;
+ return -1;
}
if (PyType_Ready(&FutureIterType) < 0) {
- return NULL;
+ return -1;
}
if (PyType_Ready(&TaskStepMethWrapper_Type) < 0) {
- return NULL;
+ return -1;
}
if (PyType_Ready(&TaskWakeupMethWrapper_Type) < 0) {
- return NULL;
+ return -1;
}
if (PyType_Ready(&TaskType) < 0) {
- return NULL;
+ return -1;
}
if (PyType_Ready(&PyRunningLoopHolder_Type) < 0) {
- return NULL;
- }
-
- PyObject *m = PyModule_Create(&_asynciomodule);
- if (m == NULL) {
- return NULL;
+ return -1;
}
Py_INCREF(&FutureType);
- if (PyModule_AddObject(m, "Future", (PyObject *)&FutureType) < 0) {
+ if (PyModule_AddObject(module, "Future", (PyObject *)&FutureType) < 0) {
Py_DECREF(&FutureType);
- Py_DECREF(m);
- return NULL;
+ Py_DECREF(module);
+ return -1;
}
Py_INCREF(&TaskType);
- if (PyModule_AddObject(m, "Task", (PyObject *)&TaskType) < 0) {
+ if (PyModule_AddObject(module, "Task", (PyObject *)&TaskType) < 0) {
Py_DECREF(&TaskType);
- Py_DECREF(m);
- return NULL;
+ Py_DECREF(module);
+ return -1;
}
Py_INCREF(all_tasks);
- if (PyModule_AddObject(m, "_all_tasks", all_tasks) < 0) {
+ if (PyModule_AddObject(module, "_all_tasks", all_tasks) < 0) {
Py_DECREF(all_tasks);
- Py_DECREF(m);
- return NULL;
+ Py_DECREF(module);
+ return -1;
}
Py_INCREF(current_tasks);
- if (PyModule_AddObject(m, "_current_tasks", current_tasks) < 0) {
+ if (PyModule_AddObject(module, "_current_tasks", current_tasks) < 0) {
Py_DECREF(current_tasks);
- Py_DECREF(m);
- return NULL;
+ Py_DECREF(module);
+ return -1;
}
+ return 0;
+}
+
+static PyModuleDef_Slot _asyncio_slots[] = {
+ {Py_mod_exec, _asyncio_exec},
+ {0, NULL}
+};
+
+static struct PyModuleDef _asynciomodule = {
+ PyModuleDef_HEAD_INIT, /* m_base */
+ "_asyncio", /* m_name */
+ module_doc, /* m_doc */
+ 0, /* m_size */
+ asyncio_methods, /* m_methods */
+ _asyncio_slots, /* m_slots */
+ NULL, /* m_traverse */
+ NULL, /* m_clear */
+ (freefunc)module_free /* m_free */
+};
- return m;
+PyMODINIT_FUNC
+PyInit__asyncio(void)
+{
+ if (module_init() < 0) {
+ return NULL;
+ }
+ return PyModuleDef_Init(&_asynciomodule);
}
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