Files form .py not reading into C

Question

Lets say I have float x from main

import progC
def main():
     x = 3
     y=progC(x)
     print y

if __name__ == __main__
     main()

---

#include <Python.h>

static PyObject* py_bracket(PyObject* self, float x){
    x = x+5;
    return Py_BuildValue("d",x);
}

ok problem is my float x in my C program receiving 0 not the number 3 from python

Answer 1

Try this:

static PyObject* py_bracket(PyObject* self, PyObject* args){
    float x;
    if (!PyArg_ParseTuple(args, "f", &x))
        return NULL;
    x = x+5;
    return Py_BuildValue("f",x);
}