[Python-Dev] Stable ABI (original) (raw)

Christian Tismer tismer at stackless.com
Sun Jun 3 06:03:25 EDT 2018

On 02.06.18 05:47, Nick Coghlan wrote:

On 2 June 2018 at 03:45, Jeroen Demeyer <J.Demeyer at ugent.be_ _<mailto:J.Demeyer at ugent.be>> wrote:

On 2018-06-01 17:18, Nathaniel Smith wrote: Unfortunately, very few people use the stable ABI currently, so it's easy for things like this to get missed.

So there are no tests for the stable ABI in Python? Unfortunately not. https://bugs.python.org/issue21142 is an old issue suggesting automating those checks (so we don't inadvertently add or remove symbols for previously published stable ABI definitions), but it's not yet made it to the state of being sufficiently well automated that it can be a release checklist item in PEP 101. Cheers, Nick.

Actually, I think we don't need such a test any more, or we could use this one as a heuristic test:

I have written a script that scans all relevant header files and analyses all sections which are reachable in the limited API context. All macros that don't begin with an underscore which contain a "->tp_" string are the locations which will break.

I found exactly 7 locations where this is the case.

My PR will contain the 7 fixes plus the analysis script to go into tools. Preparind that in the evening.

cheers -- Chris

-- Christian Tismer-Sperling :^) tismer at stackless.com Software Consulting : http://www.stackless.com/ Karl-Liebknecht-Str. 121 : http://pyside.org 14482 Potsdam : GPG key -> 0xFB7BEE0E phone +49 173 24 18 776 fax +49 (30) 700143-0023

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