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Sun Mar 20 13:00:45 EDT 2016 · https://mail.python.org/pipermail/python-dev/2016-March/143568.html

On Sun, Mar 20, 2016 at 01:43:27PM -0300, Facundo Batista wrote:
> Hello!
> 
> I'm seeing that our code increases the reference counting to Py_None,
> and I find this a little strange: isn't Py_None eternal and will never
> die?
> 
> What's the point of counting its references?

Avoiding a branch on every single Py_DECREF / Py_INCREF?

> 
> Thanks!
> 
> -- 
> .    Facundo
> 
> Blog: http://www.taniquetil.com.ar/plog/
> PyAr: http://www.python.org/ar/
> Twitter: @facundobatista
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[Python-Dev] Counting references to Py_None