Thanks! On Wed, Feb 16, 2022 at 11:19 AM Kevin Modzelewski <kev...@gmail.com> wrote:
> Importantly, our system allows for the reference count of immortal objects > to change, as long as it doesn't go below half of the original very-high > value. So extension code with no concept of immortality will still update > the reference counts of immortal objects, but this is fine. Because of this > we haven't seen any issues with extension modules. > In CPython we will *have* to allow this in order to support binary packages built with earlier CPython versions (assuming they only use the stable ABI). Those packages will necessarily use INCREF/DECREF macros that don't check for the immortality bit. Yes, it will break COW, but nevertheless we have to support the Stable ABI, and INCREF/DECREF are in the Stable ABI. If you want COW you will have to compile such packages from source. -- --Guido van Rossum (python.org/~guido) *Pronouns: he/him **(why is my pronoun here?)* <http://feministing.com/2015/02/03/how-using-they-as-a-singular-pronoun-can-change-the-world/>
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