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Tue Jan 10 20:17:19 CET 2006 · https://mail.python.org/pipermail/python-dev/2006-January/059597.html

M.-A. Lemburg wrote:
>>I don't believe the change is major. It only affects a few extensions,
>>and for these, it is only a minor change. A single line of changing
>>will be enough.
> 
> 
> This is true for all the changes related to parameters passed by
> value. It is not true for output parameters. For these, the
> change will propagate into the extension and make quite a few
> changes necessary (for the same reason you have to change
> so many variables to Py_ssize_t).

For the output parameter, just the variable receiving
the value needs to be changed, and you are done.

> We should make it possible to have a simple recompile of old
> extensions continue to work with Python 2.5 (albeit without
> them supporting 64-bit indexes) and without introducing
> segfaults or buffer overflows that way.

I cannot see how this could reasonably achieved for arbitrary
extension modules.

Regards,
Martin

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[Python-Dev] Py_ssize_t output parameters (Was: [Python-checkins] r41971 ...)