Defining *class* methods on C code
mwh at python.net
Fri Feb 6 12:24:09 CET 2004
Thomas Heller <theller at python.net> writes:
> I once knew how to do it, but I cannot find or remember it anymore:
> How can I attach *class* methods to a type in C code, when I have a
> PyObject *func(PyObject *type, PyObject *arg);
> with the METH_O calling convention? The type is already created, I
> cannot insert it into the tp_methods array anymore.
> Something like this:
> class X(object):
> def func(cls, arg):
> X.func = classmethod(func)
Just stuff it into tp_dict? You'll need to make the method object
yourself, but that's easy.
I think you probably have to hope that the name of the class method
isn't a special method name (you'd want to call
typeobject.c:update_slots then, but I don't think you can arrange for
that to happen from outside typeobject.c as all the juicy symbols are
Or just stick TP_HEAPTYPE into tp_flags, use PyObject_SetAttr and take
TP_HEAPTYPE out again (that's very sick, though).
> Well, as an American citizen I hope that the EU tells the MPAA
> and RIAA to shove it where the Sun don't shine.
Actually they already did. Only first they bent over and dropped
their trousers. -- Shmuel (Seymour J.) Metz & Toni Lassila, asr
More information about the Python-list