New submission from Ken Jin <kenjin4...@gmail.com>:
I noticed that passing keyword arguments to types.GenericAlias's __new__ causes the interpreter to hard crash and exit due to an assertion failure: import types types.GenericAlias(bad=float) Result: Assertion failed: PyTuple_CheckExact(kwnames), file ....\cpython\Python\getargs.c, line 2767 A simple fix is to just use _PyArg_NoKeywords instead of _PyArg_NoKwnames. Looking through the rest of the C code, it seems that apart from GenericAlias, only vectorcalls for various builtins use _PyArg_NoKwnames. However, they don't seem to be affected by the bug. ---------- components: Interpreter Core messages: 382565 nosy: gvanrossum, kj priority: normal severity: normal status: open title: Passing keyword arguments to types.GenericAlias causes a hard crash versions: Python 3.10, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue42576> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
