[Python-Dev] Using PEP384 Stable ABI for the lzma extension module (original) (raw)

Nick Coghlan ncoghlan at gmail.com
Tue Oct 4 21:37:42 CEST 2011

On Tue, Oct 4, 2011 at 3:12 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:

Uh, no, it depends what you're doing. There's no reason not to allow people to resize a bytes object which they've just allocated and is still private to their code. That's the whole reason why PyBytesResize() exists, and the use case is not exotic.

Telling people to "first create a bytearray and then create a bytes object from that when you're finished" would be a shame.

If developers want to use private CPython functions, then they can't use the stable API - the whole point of having private APIs is that we don't even promise source compatibility for those, let alone binary compatibility. If they want the stability guarantee, then they have to eschew hacks that rely on implementation details (like the ability to resize "immutable" objects). That seems pretty reasonable to me.

Cheers, Nick.

-- Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia

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