[Python-Dev] Re: Slowly bend the C API towards the limited API to get a stable ABI for everyone

On 2/3/2022 12:15 PM, Victor Stinner wrote:

I'm working bottom-to-top: prepare PyObject and PyVarObject to become opaque, *and* top-to-bottom: prepare subclasses (structures "inheriting" from PyObject and PyVarObject) to become opaque like PyFrameObject.

IMO if PyObject* becomes a handle, the migration to the HPy API should be much easier.

It seems to me that moving PyObject* to be a handle leaves you in a place very similar to HPy. So why not just focus on making HPy suitable for developing C extensions, leave the existing C API alone, and eventually abandon the existing C API? Eric