Larry Hastings wrote: > On 8/11/21 12:02 AM, Thomas Grainger wrote: > > I think as long as there's a test case for something like > > @dataclass > > class Node: > > global_node: ClassVar[Node | None] > > left: InitVar[Node | None] > > right: InitVar[None | None] > > > > the bug https://bugs.python.org/issue33453 and the current implementation > > https://github.com/python/cpython/blob/bfc2d5a5c4550ab3a2fadeb9459b4bd948ff6... > > shows this is a tricky problem > > The most straightforward workaround for this is to skip the decorator > syntax. With PEP 649 active, this code should work: > class Node: > global_node: ClassVar[Node | None] > left: InitVar[Node | None] > right: InitVar[None | None] > Node = dataclass(Node) > //arry/
the decorator version simply has to work _______________________________________________ Python-Dev mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-dev.python.org/ Message archived at https://mail.python.org/archives/list/[email protected]/message/2SHPHLZ2QV7YVCIC4PFPNLIHTW2WZP3A/ Code of Conduct: http://python.org/psf/codeofconduct/