New submission from Greg Kuhn <gregoryk...@gmail.com>:
I have a snippet below which runs fine on python 3.7.0 but raises a ValueError exception on 3.7.1. I believe it's related to https://bugs.python.org/issue33805. The error: c:\python\lib\dataclasses.py:1219: ValueError The script: from dataclasses import replace, dataclass, InitVar @dataclass class Test: a:int = 1 b:InitVar[int] = None def __post_init__(self, b): if b is not None: self.a = b if __name__ == '__main__': t = Test() t1 = Test(b=5) assert t1.a == 5 t2 = replace(t1, **{}) print(t2) ---------- components: Interpreter Core messages: 339105 nosy: Greg Kuhn priority: normal severity: normal status: open title: dataclasses replace raises an exception with an empty type: behavior versions: Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36470> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
