On Tue, 05 Oct 2010 16:17:57 +0200
"Jonas H." <jo...@lophus.org> wrote:
>
> Right now I have this minimal struct:
>
> static PyTypeObject StartResponse_Type = {
> PyObject_HEAD_INIT(&PyType_Type)
> 0, /* ob_size */
> "start_response", /* tp_name */
> sizeof(StartResponse), /* tp_basicsize */
> 0, /* tp_itemsize */
> (destructor)PyObject_FREE, /* tp_dealloc */
> 0, 0, 0, 0, 0, 0, 0, 0, 0, /* tp_print, tp_{get,set}attr, stuff */
> start_response /* tp_call */
> };
>
> I'm not sure about the `PyObject_HEAD_INIT` argument, but passing NULL
> to it made `dir(obj)` crash.
It shouldn't. Are you sure you're calling PyType_Ready in the module
initialization routine?
By the way, it is recommended to use at least Py_TPFLAGS_DEFAULT for
tp_flags.
> So does setting `GenericGetAttr` as
> `tp_getattr`.
tp_getattr has the same signature as PyObject_GetAttrString. You're
looking for tp_getattro, which takes the attribute name as a PyObject *
rather than as a char *.
However, if you want your type to have a __dict__, what you need to do
is to have a "PyObject *dict" member (the name is not important, of
course), and initialize tp_dictoffset to offsetof(StartResponse, dict).
You don't have to set tp_getattr, PyType_Ready() should do the right
thing.
Regards
Antoine.
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