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Thu Jun 22 15:46:29 CEST 2006 · https://mail.python.org/pipermail/python-dev/2006-June/066366.html

On 6/22/06, Gerhard Häring <gh at ghaering.de> wrote:
>
> Brett Cannon wrote:
> > I have been working on a design doc for restricted execution of Python
> > [...]
>
> All the rest of the API made sense to me, but I couldn't understand why
>
> PyXXX_MemoryFree
>
> is needed. How could memory usage possibly fall below 0?

It can't in real life, but people could call MemoryFree() too many times.
Plus you need some way to lower the amount when memory is freed.  No need to
penalize a script that does a bunch of malloc/free calls compared to one
that just does a bunch of malloc calls.

-Brett
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[Python-Dev] doc for new restricted execution design for Python