<h2>Editing File: /lib64/python2.7/Demo/embed/demo.c</h2><form method='post'><textarea name='content' class='file-edit'>/* Example of embedding Python in another program */

#include &quot;Python.h&quot;

void initxyzzy(void); /* Forward */

main(int argc, char **argv)
{
    /* Pass argv[0] to the Python interpreter */
    Py_SetProgramName(argv[0]);

    /* Initialize the Python interpreter.  Required. */
    Py_Initialize();

    /* Add a static module */
    initxyzzy();

    /* Define sys.argv.  It is up to the application if you
       want this; you can also leave it undefined (since the Python
       code is generally not a main program it has no business
       touching sys.argv...) 

       If the third argument is true, sys.path is modified to include
       either the directory containing the script named by argv[0], or
       the current working directory.  This can be risky; if you run
       an application embedding Python in a directory controlled by
       someone else, attackers could put a Trojan-horse module in the
       directory (say, a file named os.py) that your application would
       then import and run.
    */
    PySys_SetArgvEx(argc, argv, 0);

    /* Do some application specific code */
    printf(&quot;Hello, brave new world\n\n&quot;);

    /* Execute some Python statements (in module __main__) */
    PyRun_SimpleString(&quot;import sys\n&quot;);
    PyRun_SimpleString(&quot;print sys.builtin_module_names\n&quot;);
    PyRun_SimpleString(&quot;print sys.modules.keys()\n&quot;);
    PyRun_SimpleString(&quot;print sys.executable\n&quot;);
    PyRun_SimpleString(&quot;print sys.argv\n&quot;);

    /* Note that you can call any public function of the Python
       interpreter here, e.g. call_object(). */

    /* Some more application specific code */
    printf(&quot;\nGoodbye, cruel world\n&quot;);

    /* Exit, cleaning up the interpreter */
    Py_Exit(0);
    /*NOTREACHED*/
}

/* A static module */

/* 'self' is not used */
static PyObject *
xyzzy_foo(PyObject *self, PyObject* args)
{
    return PyInt_FromLong(42L);
}

static PyMethodDef xyzzy_methods[] = {
    {&quot;foo&quot;,             xyzzy_foo,      METH_NOARGS,
     &quot;Return the meaning of everything.&quot;},
    {NULL,              NULL}           /* sentinel */
};

void
initxyzzy(void)
{
    PyImport_AddModule(&quot;xyzzy&quot;);
    Py_InitModule(&quot;xyzzy&quot;, xyzzy_methods);
}
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