New submission from Nick Coghlan <ncogh...@gmail.com>: Type creation currently wraps all exceptions raised by __set_name__ calls with a generic RuntimeError: https://github.com/python/cpython/blob/master/Objects/typeobject.c#L7263
Unfortunately, this makes it difficult to use __set_name__ for descriptor validation operations, since it means the specific exception type gets lost, and it makes the traceback much harder to read (since the generic error messages appears at the end, while the actual error appears somewhere in the middle). See https://bugs.python.org/issue21145#msg317097 for a specific example. ---------- components: Interpreter Core messages: 317098 nosy: ncoghlan priority: normal severity: normal stage: needs patch status: open title: Remove exception wrapping from __set_name__ calls type: enhancement versions: Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33576> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
