Method with_val

Lib/test/test_capi/test_number.py:29–34

(cls, val)

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

    @classmethod
    def with_exc(cls, exc):