Method with_exc

Lib/test/test_capi/test_number.py:37–42

(cls, exc)

    @classmethod
    def with_exc(cls, exc):
        obj = super().__new__(cls)
        obj.val = None
        obj.exc = exc
        setattr(cls, cls.methname, cls._meth)
        return obj

class HasBadAttr:
    def __new__(cls):