Hi, nice to meet you, everyone.
I'm umedoblock.
I'd like to call super() in c extension.
I'd like to rewrite class Baa as c extension.
Please see below code.
Now, I can make super object.
But I cannot understand how to use super_init(), super_descr_get() and
super_getattro().
Please please help me...
------------------------------------------------------------
baa.py
class Baa(object):
def __init__(self):
print('call __init__() in Baa.')
def sample(self):
print('call sample() in Baa.')
class Foo(Baa):
def __init__(self):
print('call __init__() in Foo.')
super().sample()
super().__init__()
class Baz(Foo):
def __init__(self):
print('call __init__() in Baz.')
super().__init__()
--
pyfoo.c
static int
Foo_init(FooObject *self, PyObject *args, PyObject *kwds)
{
int ret = 0;
PyTypeObject *super_type = &PySuper_Type;
PyObject *super_obj;
PyObject *empty_tuple;
super_obj = super_type->tp_alloc(super_type, 0);
empty_tuple = Py_BuildValue("()");
ret = super_type->tp_init(super_obj, empty_tuple, NULL);
fprintf(stderr, "super_obj = %p\n", super_obj);
PyObject_Print((PyObject *)super_obj, stderr, 0); fprintf(stderr,
"\n\n");
fprintf(stderr, "super_type->tp_init(super_obj=%p, empty_tuple=%p,
NULL)=%d\n", super_obj, empty_tuple, ret);
return 0;
}
PyMODINIT_FUNC
PyInit__foo(void)
{
PyObject *m;
PyObject *import_baa = NULL, *Baa = NULL;
PyObject *Baa_str;
import_baa = PyImport_ImportModule("baa");
Baa_str = Py_BuildValue("s", "Baa");
Baa = PyObject_GetAttr(import_baa, Baa_str);
Foo_Type.tp_base = (struct _typeobject *)Baa;
Py_INCREF(Foo_Type.tp_base);
Foo_Type.tp_new = Foo_new;
if (PyType_Ready(&Foo_Type) < 0)
return NULL;
Py_INCREF(&Foo_Type);
m = PyModule_Create(&Foo_module);
if (m == NULL)
return NULL;
PyModule_AddObject(m, "Foo", (PyObject *)&Foo_Type);
PyModule_AddStringConstant(m, "CONST", "C_EXTENSION");
return m;
}
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