[Python-Dev] future-proofing vector tables for python APIs: binary-module interoperability (original) (raw)

Luke Kenneth Casson Leighton lkcl at lkcl.net
Sun Jan 25 16:37:47 CET 2009

decoupling posixmodule.c from pythonNN.dll leaves the possibility to make python independent of msvcrt versioning.

it would need to be a custom-compiled .pyd module, due to the early dependency. i'll see if this is possible.

i'd added PyExc_OSError, for example, as data exported from dlls. i'm finding that this causes.... problems :)

so when posixmodule.c is a module (nt.pyd), doing this works:

PyAPI_FUNC(PyObject ) PyErr_GetPyExc_OSError(void) { return (PyObject)PyExc_OSError; }

and thus

oserr = PyErr_GetPyExc_OSError();

Py_INCREF(oserr);
PyModule_AddObject(m, "error", oserr)

but doing direct access to PyExc_OSError fails miserably.

i'll try to track down why (am adding __cdecl to PyAPI_DATA to see if that helps).

l.

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