Martijn Pieters <m...@python.org> added the comment:
I've supported people hitting this issue before (see https://stackoverflow.com/a/53085935/100297, where I used a series of mixin classes to make use of the changing MRO when the mixins share base classes, to enforce a field order from inherited classes. I'd be very much in favour of dataclasses using the attrs approach to field order: any field named in a base class *moves to the end*, so you can 'insert' your own fields by repeating parent fields that need to come later: @attr.s(auto_attribs=True) class Parent: foo: str bar: int baz: bool = False @attr.s(auto_attribs=True) class Child(Parent): spam: str baz: bool = False The above gives you a `Child(foo: str, bar: int, spam: str, baz: bool = False)` object, note that `baz` moved to the end of the arguments. `dataclasses` currently doesn't do this, so it'd be a breaking change. ---------- nosy: +mjpieters _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36077> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
