New submission from Serhiy Storchaka <storchaka+cpyt...@gmail.com>:
>>> import dataclasses, types >>> @dataclasses.dataclass ... class A(types.GenericAlias): ... origin: type ... args: type ... >>> dataclasses.is_dataclass(A) True >>> a = A(list, int) >>> dataclasses.is_dataclass(type(a)) True >>> dataclasses.is_dataclass(a) False ---------- components: Library (Lib) messages: 405256 nosy: eric.smith, gvanrossum, serhiy.storchaka priority: normal severity: normal status: open title: is_dataclass() does not work for dataclasses which are subclasses of types.GenericAlias type: behavior versions: Python 3.10, Python 3.11, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue45663> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
