STINNER Victor <vstin...@redhat.com> added the comment:
I would prefer to revert PyCode_New() API (to Python 3.7 and older API), and add a *new* function for positional-only arguments. > I have created PR13959 in case we decide to go with the PyCode_NewEx path. I dislike "Ex" suffix. What will be next name? Ex2? NewEx? I prefer "With" naming. I suggest: PyCode_NewWithPosArgs(). IMHO it's way more explicit when you opt-in for this new function ;-) -- PyCode_New() was broken 8 times in the history of Python :-) https://bugs.python.org/issue37032#msg343377 It seems like more people are unhappy with this backward incompatible change, because Python popularity is still growing. It's a good sign of the health of time :-) -- > +1. You already broke backwards compatibility once in beta1, no need to do it > again in beta2. It's not this easy. This issue mostly impact projects using Cython. For practical reasons, projects include C files generated by Cython (to avoid Cython dependency to install the project). Cython 0.29.8 is the first version supporting Python 3.8 (new PyCode_New API) was only released two weeks ago. Right now, I guess that almost all, if not all, tarballs on PyPI on projects using Cython still include C code only compatible with Python 3.7 (old PyCode_New API). There are 183k projets on PyPI. I would prefer to not have to have to manually regenerate the C code they include to support the new PyCode_New() API. We are still at beta stage. The role of beta releases is to detect backward incompatible changes like that. I'm in favor of reverting PyCode_New() API and add a new function for the very few people who care about building manually a code object with positional-only arguments. It's just a practical move to not break projects on PyPI. Please, synchronize with Cython to make sure that we can get a Cython release soon after beta2 with will emit code working on all Python version. Maybe the workaround for Python 3.8 alpha1 .. 3.8 beta1 can be simply removed from Cython? ---------- nosy: +vstinner _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue37221> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
