bpo-37483: add _PyObject_CallOneArg() function (#14558)

1 files changed, 2 insertions, 3 deletions

diff --git a/Python/errors.c b/Python/errors.c
index b3b9ac94cd..a7d40c132d 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -93,7 +93,7 @@ _PyErr_CreateException(PyObject *exception, PyObject *value)
         return PyObject_Call(exception, value, NULL);
     }
     else {
-        return PyObject_CallFunctionObjArgs(exception, value, NULL);
+        return _PyObject_CallOneArg(exception, value);
     }
 }
 
@@ -1381,8 +1381,7 @@ _PyErr_WriteUnraisableMsg(const char *err_msg_str, PyObject *obj)
         hook_args = make_unraisable_hook_args(tstate, exc_type, exc_value,
                                               exc_tb, err_msg, obj);
         if (hook_args != NULL) {
-            PyObject *args[1] = {hook_args};
-            PyObject *res = _PyObject_FastCall(hook, args, 1);
+            PyObject *res = _PyObject_CallOneArg(hook, hook_args);
             Py_DECREF(hook_args);
             if (res != NULL) {
                 Py_DECREF(res);