Mini-optimization: use pack/unpack functions for argument tuples.

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index c3fefb91cb1f8acb44e007445a577f6d6804caa8..4e9ec85ca0bcb9f7b872ca96a4d340e73b9d232f 100644 (file)
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -112,7 +112,7 @@ builtin___build_class__(PyObject *self, PyObject *args, PyObject *kwds)
                ns = PyDict_New();
        }
        else {
-               PyObject *pargs = Py_BuildValue("OO", name, bases);
+               PyObject *pargs = PyTuple_Pack(2, name, bases);
                if (pargs == NULL) {
                        Py_DECREF(prep);
                        Py_DECREF(meta);
@@ -133,7 +133,7 @@ builtin___build_class__(PyObject *self, PyObject *args, PyObject *kwds)
        cell = PyObject_CallFunctionObjArgs(func, ns, NULL);
        if (cell != NULL) {
                PyObject *margs;
-               margs = Py_BuildValue("OOO", name, bases, ns);
+               margs = PyTuple_Pack(3, name, bases, ns);
                if (margs != NULL) {
                        cls = PyEval_CallObjectWithKeywords(meta, margs, mkw);
                        Py_DECREF(margs);
@@ -754,7 +754,7 @@ builtin_exec(PyObject *self, PyObject *args)
        PyObject *prog, *globals = Py_None, *locals = Py_None;
        int plain = 0;
 
-       if (!PyArg_ParseTuple(args, "O|OO:exec", &prog, &globals, &locals))
+       if (!PyArg_UnpackTuple(args, "exec", 1, 3, &prog, &globals, &locals))
                return NULL;
        
        if (globals == Py_None) {