[Python-Dev] What do PyAPI_FUNC & PyAPI_DATA mean? (original) (raw)

Mark Shannon mark at hotpy.org
Mon Apr 23 10:32:04 CEST 2012


Many (most?) of the function declarations in the CPython header files are annotated with the PyAPI_FUNC declaration. Similarly for data declarations and PyAPI_DATA

What do they mean, exactly? From the name I would expect that they are a way of declaring a function or datum to be part of the API, but their usage seems to be more to do with linkage.

The reason I am asking is that the new dictionary implementation declares a few functions used to communicate between dictobject.c, typeobject.c and ceval.c which cannot be static functions, but are not intended to be part of the API.

Cheers, Mark.



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