> On Sep 9, 2016, at 7:11 AM, Alex Grönholm <alex.gronh...@nextday.fi> wrote: > > Am I understanding this correctly? Even though the limited API is supposed to > work on all CPython versions supporting the numbered API, I cannot do the > compiling using a newer version (say 3.5) or it won't work with older ones > (3.3, 3.4)?
The Py_Limited_API can be either set to an on/off value (in which case it is effectively CPython>=3.2) or you can set it to the hex value of a specific version (in which case it is CPython>=thatversion). So you can compile a Py_Limited_API for older CPythons just fine, you’ll just need to appropriately set the Py_Limited_API value. The reason for this is so CPython can *add* new functions to the stable ABI (but not remove or modify in an ABI incompatible way). So if you use a new to the ABI function, you’ll need a newer minimum. — Donald Stufft
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