[Python-Dev] Moving forward on the object memory API

[Tim Peters]

[Neil Schemenauer]
> I was under the impression that the binary API changes in every minor
> release.

In recent reality it has, so you young sprouts can be forgiven for not
realizing it's not mandatory to break binary compatibility across releases.
The longevity record for binary compatibility extended from 18-Jan-1997 to
14-Mar-2000; note that 1.5.2 was released during that stretch, on
13-Apr-1999.  The full history is in modsupport.h, under PYTHON_API_STRING.