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/* Example of embedding Python in another program */
#include "Python.h"
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("Hello, brave new world\n\n");
/* Execute some Python statements (in module __main__) */
PyRun_SimpleString("import sys\n");
PyRun_SimpleString("print sys.builtin_module_names\n");
PyRun_SimpleString("print sys.modules.keys()\n");
PyRun_SimpleString("print sys.executable\n");
PyRun_SimpleString("print sys.argv\n");
/* Note that you can call any public function of the Python
interpreter here, e.g. call_object(). */
/* Some more application specific code */
printf("\nGoodbye, cruel world\n");
/* 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[] = {
{"foo", xyzzy_foo, METH_NOARGS,
"Return the meaning of everything."},
{NULL, NULL} /* sentinel */
};
void
initxyzzy(void)
{
PyImport_AddModule("xyzzy");
Py_InitModule("xyzzy", xyzzy_methods);
}
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