[Python-Dev] Counting references to Py_None (original) (raw)

Armin Rigo arigo at tunes.org
Mon Mar 21 17:42:46 EDT 2016

Hi,

On 20 March 2016 at 18:10, Brett Cannon <brett at python.org> wrote:

And if we didn't keep its count accurately it would eventually hit zero and constantly have its dealloc function checked for.

I think the idea is really consistency. If we wanted to avoid all "Py_INCREF(Py_None);", it would be possible: we could let the refcount of None decrement to zero, at which point its deallocator is called; but this deallocator can simply bumps the refcount to a large value again. The deallocator would end up being called very rarely.

A bientôt,

Armin.

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