gh-86493: Modernize modules initialization code (GH-106858)

Use PyModule_Add() or PyModule_AddObjectRef() instead of soft deprecated
PyModule_AddObject().

2 files changed, 4 insertions, 11 deletions

diff --git a/Doc/extending/extending.rst b/Doc/extending/extending.rst
index 0c5da49..00a9edc 100644
--- a/Doc/extending/extending.rst
+++ b/Doc/extending/extending.rst
@@ -221,9 +221,7 @@ with an exception object::
            return NULL;
 
        SpamError = PyErr_NewException("spam.error", NULL, NULL);
-       Py_XINCREF(SpamError);
-       if (PyModule_AddObject(m, "error", SpamError) < 0) {
-           Py_XDECREF(SpamError);
+       if (PyModule_AddObjectRef(m, "error", SpamError) < 0) {
            Py_CLEAR(SpamError);
            Py_DECREF(m);
            return NULL;
@@ -1281,8 +1279,7 @@ function must take care of initializing the C API pointer array::
        /* Create a Capsule containing the API pointer array's address */
        c_api_object = PyCapsule_New((void *)PySpam_API, "spam._C_API", NULL);
 
-       if (PyModule_AddObject(m, "_C_API", c_api_object) < 0) {
-           Py_XDECREF(c_api_object);
+       if (PyModule_Add(m, "_C_API", c_api_object) < 0) {
            Py_DECREF(m);
            return NULL;
        }
diff --git a/Doc/extending/newtypes_tutorial.rst b/Doc/extending/newtypes_tutorial.rst
index ba09fb1..4f9c889 100644
--- a/Doc/extending/newtypes_tutorial.rst
+++ b/Doc/extending/newtypes_tutorial.rst
@@ -180,9 +180,7 @@ This initializes the :class:`Custom` type, filling in a number of members
 to the appropriate default values, including :attr:`ob_type` that we initially
 set to ``NULL``. ::
 
-   Py_INCREF(&CustomType);
-   if (PyModule_AddObject(m, "Custom", (PyObject *) &CustomType) < 0) {
-       Py_DECREF(&CustomType);
+   if (PyModule_AddObjectRef(m, "Custom", (PyObject *) &CustomType) < 0) {
        Py_DECREF(m);
        return NULL;
    }
@@ -862,9 +860,7 @@ function::
        if (m == NULL)
            return NULL;
 
-       Py_INCREF(&SubListType);
-       if (PyModule_AddObject(m, "SubList", (PyObject *) &SubListType) < 0) {
-           Py_DECREF(&SubListType);
+       if (PyModule_AddObjectRef(m, "SubList", (PyObject *) &SubListType) < 0) {
            Py_DECREF(m);
            return NULL;
        }