Python C API: how to mark a type as subclass of another type

[Marco Sulla]

I already added the address of the type to tp_base, but it does not work.

On Mon, 1 Nov 2021 at 17:18, Dieter Maurer <dieter at handshake.de> wrote:
>
> Marco Sulla wrote at 2021-10-31 23:59 +0100:
> >I have two types declared as
> >
> >PyTypeObject PyX_Type = {
> >    PyVarObject_HEAD_INIT(&PyType_Type, 0)
> >
> >etc.
> >
> >How can I mark one of the types as subclass of the other one? I tried
> >to use tp_base but it didn't work.
>
> Read the "Python/C Api" documentation. Watch out for `tp_base`.