[Python-ideas] Implicit submodule imports

[Greg Ewing]

Nathaniel Smith wrote:
> This code has been around forever, but I don't know why. AFAIK we
> could replace the above with
> 
>     if (compatible_for_assignment(oldto, newto, "__class__")) {
>         if (newto->tp_flags & Py_TPFLAGS_HEAPTYPE) {
>             Py_INCREF(newto);
>         }
>         Py_TYPE(self) = newto;
>         if (oldto->tp_flags & Py_TPFLAGS_HEAPTYPE) {
>            Py_DECREF(oldto);
>         }
>         return 0;
>     }

Is it even necessary to worry about the refcounting?
Presumably the non-heap type objects all start out with
a refcount of at least 1, so there's no danger of them
getting deallocated.

-- 
Greg