I am trying to embed a c function in my python script for a first time.
When I try to call it I get an error
SystemError: new style getargs format but argument is not a tuple
Guido said on some mailing list, that it is probably an effect of the
lack of METH_VARARGS in the functions' array, but it's ok in my source
code. Here is the full code:
#include <python2.4/Python.h>
static PyObject * mandelpixel(PyObject *self, PyObject *args)
{
double z_real = 0, z_imag = 0, z_real2 = 0, z_imag2 = 0, c_real,
c_imag, bailoutsquare;
int iteration_number;
register int i;
PyObject coord;
if (!PyArg_ParseTuple(args, "Oid", &coord, &iteration_number,
&bailoutsquare))
return NULL;
if (!PyArg_ParseTuple(&coord, "dd", &c_real, &c_imag))
return NULL;
for(i = 1; i <= iteration_number; i++)
{
z_imag = 2 * z_real * z_imag + c_imag;
z_real = z_real2 - z_imag2 + c_real;
z_real2 = z_real * z_real;
z_imag2 = z_imag * z_imag;
if (z_real2 + z_imag2 > bailoutsquare)
return Py_BuildValue("i", i);
}
return Py_BuildValue("i", 0);
}
static PyMethodDef MandelcMethods[] =
{
{
"mandelpixel", mandelpixel, METH_VARARGS, "check the pixel for
Mandelbrot set"
},
{
NULL, NULL, 0, NULL
}
};
PyMODINIT_FUNC initmandelc(void)
{
(void) Py_InitModule ("mandelc", MandelcMethods);
}
int main(int argc, char **argv)
{
Py_SetProgramName(argv[0]);
Py_Initialize();
initmandelc();
return 0;
}
Greets
zefciu
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