#include <Python.h>

static char cc_doc[] = 
"This module demonstrates the various calling conventions that the\n\
Python/C API offers.";

static PyObject*
cc_varargs(PyObject *self, PyObject *args)
{
	return PyString_FromFormat("received %d arguments", 
				   PyTuple_Size(args));
}

static char cc_varargs_doc[] = 
"varargs(*args) -> string";

static PyObject*
cc_o(PyObject *self, PyObject *arg)
{
	return PyString_FromFormat("received 1 arguments of type %.500s", 
				   arg->ob_type->tp_name);
}

static char cc_o_doc[] = 
	"";

static PyObject*
cc_noargs(PyObject *self, PyObject *noarg)
{
	return PyString_FromFormat("received no arguments, noarg is %p",
				   noarg);
}

static char cc_noargs_doc[] = 
	"";

static PyObject*
cc_keywords(PyObject *self, PyObject *args, PyObject *kwargs)
{
	PyObject *arg;
	static char* kwlist[] = {"arg", NULL};
	
	if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:keywords", 
					 kwlist, &arg))
		return NULL;

	Py_INCREF(Py_None);
	return Py_None;
}

static char cc_keywords_doc[] = 
	"";

static PyMethodDef cc_methods[] = {
	{"varargs", 	cc_varargs,	METH_VARARGS,	cc_varargs_doc},
	{"o",		cc_o,		METH_O,		cc_o_doc},
	{"noargs",	cc_noargs,	METH_NOARGS,	cc_noargs_doc},
	{"keywords", 	(PyCFunction)cc_keywords,       
	METH_KEYWORDS,	cc_keywords_doc},
	{NULL, NULL}
};

PyMODINIT_FUNC
initcallingconventions(void)
{
	Py_InitModule3("callingconventions", cc_methods, cc_doc);
}