Replace PyObject_CallFunction() with fastcall

Replace
    PyObject_CallFunction(func, "O", arg)
and
    PyObject_CallFunction(func, "O", arg, NULL)
with
    _PyObject_CallArg1(func, arg)

Replace
    PyObject_CallFunction(func, NULL)
with
    _PyObject_CallNoArg(func)

_PyObject_CallNoArg() and _PyObject_CallArg1() are simpler and don't allocate
memory on the C stack.

1 files changed, 1 insertions, 1 deletions

diff --git a/Modules/readline.c b/Modules/readline.c
index 3b94d4a0d1..389954f087 100644
--- a/Modules/readline.c
+++ b/Modules/readline.c
@@ -868,7 +868,7 @@ on_hook(PyObject *func)
     int result = 0;
     if (func != NULL) {
         PyObject *r;
-        r = PyObject_CallFunction(func, NULL);
+        r = _PyObject_CallNoArg(func);
         if (r == NULL)
             goto error;
         if (r == Py_None)