Rémi Lapeyre <remi.lape...@henki.fr> added the comment: I think this is what is referring Кирилл Чуркин to:
Python 3.7.2 (default, Jan 13 2019, 12:50:01) [Clang 10.0.0 (clang-1000.11.45.5)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> from dataclasses import dataclass >>> @dataclass ... class Parent: ... x: int = 1 ... >>> Parent() Parent(x=1) >>> @dataclass ... class Child(Parent): ... y: int ... Traceback (most recent call last): File "<stdin>", line 2, in <module> File "/usr/local/Cellar/python/3.7.2_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/dataclasses.py", line 991, in dataclass return wrap(_cls) File "/usr/local/Cellar/python/3.7.2_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/dataclasses.py", line 983, in wrap return _process_class(cls, init, repr, eq, order, unsafe_hash, frozen) File "/usr/local/Cellar/python/3.7.2_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/dataclasses.py", line 904, in _process_class else 'self', File "/usr/local/Cellar/python/3.7.2_1/Frameworks/Python.framework/Versions/3.7/lib/python3.7/dataclasses.py", line 490, in _init_fn raise TypeError(f'non-default argument {f.name!r} ' TypeError: non-default argument 'y' follows default argument @eric.smith, do you think Child's argument should be merged nicely with Parent's ones in this case? If so, can I propose a PR? ---------- nosy: +remi.lapeyre _______________________________________ 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