[Python-Dev] Python initialization and embedded Python (original) (raw)

Nick Coghlan ncoghlan at gmail.com
Thu Nov 23 23:01:15 EST 2017

On 24 November 2017 at 12:21, Glenn Linderman <v+python at g.nevcal.com> wrote:

On 11/23/2017 5:31 PM, Nick Coghlan wrote:

- a consolidated list of all the APIs that can safely be called before PyInitialize So it is interesting to know that list, of course, but the ones that are to be supported and documented might be a smaller list. Or might not.

Ah, sorry - "safely" was a bit ambiguous there. By "safely" I meant "CPython has a regression test that ensures that particular API will keep working before Py_Initialize(), regardless of any changes we may make to the way we handle interpreter initialization".

We've long had a lot of other APIs that happen to work well enough for CPython itself to get away with using them during the startup process, but the official position on those is "Don't count on these APIs working prior to Py_Initialize() in the general case - we only get away with it because we can adjust the exact order in which we do things in order to account for any other changes that break it".

Cheers, Nick.

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