> On 2 Feb 2022, at 11:50, Stefan Behnel <stefan...@behnel.de> wrote: > > Petr Viktorin schrieb am 02.02.22 um 10:22: >> Moving off the internal (unstable) API would be great, but I don't think >> Cython needs to move all the way to the limited API. >> There are three "levels" in the C API: >> - limited API, with long-term ABI compatibility guarantees > > That's what "-DCYTHON_LIMITED_API -DPy_LIMITED_API=..." is supposed to do, > which currently fails for much if not most code. > > >> - "normal" public API, covered by the backwards compatibility policy (users >> need to recompile for every minor release, and watch for deprecation >> warnings) > > That's probably close to what "-DCYTHON_LIMITED_API" does by itself as it > stands. I can see that being a nice feature that just deserves a more > suitable name. (The name was chosen because it was meant to also internally > define "Py_LIMITED_API" at some point. Not sure if it will ever do that.) > > >> - internal API (underscore-prefixed names, `internal` headers, things >> documented as private) >> AFAIK, only the last one is causing trouble here. > > Yeah, and that's the current default mode on CPython.
Is is possible to automatically pick a different default version when building with a too new CPython version? That way projects can at least be used and tested with pre-releases of CPython, although possibly with less performance. Ronald > > Maybe we should advertise the two modes more. And make sure that both work. > There are certainly issues with the current state of the "limited API" > implementation, but that just needs work and testing. > > Stefan > > _______________________________________________ > Python-Dev mailing list -- python-dev@python.org > To unsubscribe send an email to python-dev-le...@python.org > https://mail.python.org/mailman3/lists/python-dev.python.org/ > Message archived at > https://mail.python.org/archives/list/python-dev@python.org/message/ESEPW36K3PH4RM7OFVKAOE4QMBI2WYVU/ > Code of Conduct: http://python.org/psf/codeofconduct/ — Twitter / micro.blog: @ronaldoussoren Blog: https://blog.ronaldoussoren.net/
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