| /* 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); |
| } |