how to execute a python (2.7) script from a c program in Windows

Question

I have been looking for this solution for some time and cannot find a solution. Some solutions have suggested using the "system" function in the . However, this suggestion is then always followed by 10 people saying never to use system as it lacks thread safety. Does anyone know how to do this?

Just some info: my python script gets and parses JSON from the internet, then creates a textfile, which the c program then uses. So, instead of having to run one, then the other, I want to run them both in succession from the C exe.

EDIT: Grammer

You may have two separate programs, one for fetching JSON and preparing data for it and another which takes the prepared data and produces some results. You may use, say, a batch file which glues things together. Thus you'll get a simplicity and, well, atomicity, which would allow you to construct a complex and flexible solutions just like Lego constructor does. — user3159253
– user3159253, Commented Feb 1, 2014 at 6:44
Have you considered doing it the other way around - i.e. calling into C functions from the Python script? This is the approach normally recommended in the Python community. — Karl Knechtel
– Karl Knechtel, Commented Feb 1, 2014 at 8:36

Karl Knechtel · Accepted Answer · 2014-02-01 08:38:39Z

2

You can Use system function in c,c++

like this

 system("python ashouri.py");

or

use this code

  static PyObject *my_callback = NULL;

  static PyObject *
  my_set_callback(PyObject *dummy, PyObject *args)
  {
      PyObject *result = NULL;
      PyObject *temp;

      if (PyArg_ParseTuple(args, "O:set_callback", &temp)) {
          if (!PyCallable_Check(temp)) {
              PyErr_SetString(PyExc_TypeError, "parameter must be callable");
              return NULL;
          }
          Py_XINCREF(temp);         /* Add a reference to new callback */
          Py_XDECREF(my_callback);  /* Dispose of previous callback */
          my_callback = temp;       /* Remember new callback */
          /* Boilerplate to return "None" */
          Py_INCREF(Py_None);
          result = Py_None;
      }
      return result;
  }

Be Successfull

edited Feb 1, 2014 at 8:38

Karl Knechtel

61.4k14 gold badges133 silver badges193 bronze badges

answered Feb 1, 2014 at 6:52

Ashouri

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1 Comment

George Over a year ago

Which libraries do you have to include?

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