06.06.21 06:48, Guido van Rossum пише: > On Fri, Jun 4, 2021 at 6:15 AM Victor Stinner <vstin...@python.org > <mailto:vstin...@python.org>> wrote: > If possible, I would prefer to make PyThreadState, PyCodeObject and > other structures opaque, and only go through getter and setter > functions ;-) PyCode_New() is another problem :-/ The PEP 570 first > changed it to add a new parameter. It broke Cython and other projects. > The change was reverted, and PyCode_NewWithPosOnlyArgs() was added. > The lesson is that it's possible to change PyCodeObject without > breaking PyCode_New() (which handles the "backward compatibility" for > you). > > > I'm afraid that won't always be possible though. At some point there > just may not be a valid meaning for the original PyCode_New() call. It > was easy in the case of positional arguments (by default don't have any) > but it may not always be that simple, and we shouldn't make guarantees here.
We have already reached this limit. In 3.11 the code object needs a table of exception handlers. Only simplest code which do not contain any "try" or "with" can now be created with old PyCode_New() and PyCode_NewWithPosOnlyArgs(). _______________________________________________ Python-Dev mailing list -- python-dev@python.org To unsubscribe send an email to python-dev-le...@python.org https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/python-dev@python.org/message/G5Y5DD4T3ZSJ4DYWFZH4TFVNHJHBN5K2/ Code of Conduct: http://python.org/psf/codeofconduct/
