Someone

/* C equivalent of
 *    import pygtk
 *    pygtk.require ("2.0")
 */
static gboolean
check_pygtk2 (void)
{
	PyObject *pygtk, *mdict, *require;

	/* pygtk.require("2.0") */
	pygtk = PyImport_ImportModule ("pygtk");
	if (pygtk == NULL)
	{
		g_warning ("Could not import pygtk");
		return FALSE;
	}

	mdict = PyModule_GetDict (pygtk);
	require = PyDict_GetItemString (mdict, "require");
	PyObject_CallObject (require,
			     Py_BuildValue ("(S)", PyString_FromString ("2.0")));
	if (PyErr_Occurred())
	{
		g_warning ("pygtk 2 is required");
		return FALSE;
	}

	return TRUE;
}

/* Note: the following two functions are needed because
 * init_pyobject and init_pygtk which are *macros* which in case
 * case of error set the PyErr and then make the calling
 * function return behind our back.
 * It's up to the caller to check the result with PyErr_Occurred()
 */
static void
gedit_init_pygobject (void)
{
	init_pygobject_check (2, 11, 5); /* FIXME: get from config */
}

static void
gedit_init_pygtk (void)
{
	PyObject *gtk, *mdict, *version, *required_version;

	init_pygtk ();

	/* there isn't init_pygtk_check(), do the version
	 * check ourselves */
	gtk = PyImport_ImportModule("gtk");
	mdict = PyModule_GetDict(gtk);
	version = PyDict_GetItemString (mdict, "pygtk_version");
	if (!version)
	{
		PyErr_SetString (PyExc_ImportError,
				 "PyGObject version too old");
		return;
	}

	required_version = Py_BuildValue ("(iii)", 2, 4, 0); /* FIXME */

	if (PyObject_Compare (version, required_version) == -1)
	{
		PyErr_SetString (PyExc_ImportError,
				 "PyGObject version too old");
		Py_DECREF (required_version);
		return;
	}

	Py_DECREF (required_version);
}




in class_init:


	if (!check_pygtk2 ())
	{
		return;
	}

	/* import gobject */	
	gedit_init_pygobject ();
	if (PyErr_Occurred ())
	{
		g_warning ("Could not import gobject");
		return;
	}

	/* import gtk */
	gedit_init_pygtk ();
	if (PyErr_Occurred ())
	{
		g_warning ("Could not import gtk");
		return;
	}