Petr Viktorin <encu...@gmail.com> added the comment: Ah! It seems you don't need access to all tp_* slots of any type here, but just to PyType.tp_new – only one specific type, and only one specific slot. Specifically, you need a way to create class with a metaclass, from C.
Is that right? Or was this only an example of a larger problem? (Sorry for drawing the discussion out! Dropping the checks in PyType_GetSlot would be a simple change technically, but it doesn't match my mental model of what the stable ABI should be. I'm hoping to get a better solution for your use case, and others like it.) > To obtain sizeof(PyType_Type), we simply used the Python code > type.__basicsize__ > It is a simple trick, but probably very few people know this path > to get that info. At least, for me it took way too long ;-) Well, basicsize might be exposed through Python, but it's still not part of the limited API. Which is fine – all that means is you might need to change the extension for some future version of Python. I'm sure your tests will tell you when the time comes, and I hope we'll have a better solution then! BTW, I'm honestly very impressed how far PySide got with the limited API! ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue26979> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
