New submission from Eric V. Smith <e...@trueblade.com>: See https://mail.python.org/pipermail/python-dev/2018-February/152150.html for a discussion.
This will remove the @dataclass hash= tri-state parameter, and replace it with an unsafe_hash= boolean-only parameter. >From that thread: """ I propose that with @dataclass(unsafe_hash=False) (the default), a __hash__ method is added when the following conditions are true: - frozen=True (not the default) - compare=True (the default) - no __hash__ method is defined in the class If we instead use @dataclass(unsafe_hash=True), a __hash__ will be added regardless of the other flags, but if a __hash__ method is present, an exception is raised. Other values (e.g. unsafe_hash=None) are illegal for this flag. """ ---------- assignee: eric.smith components: Library (Lib) messages: 312686 nosy: eric.smith, ned.deily priority: release blocker severity: normal status: open title: Change dataclasses hashing to use unsafe_hash boolean (default to False) type: behavior versions: Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32929> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
