incompatible table_type with existing [(other.table_type) - (self.table_type)]

Raise code

idate(self, other):
        """ validate against an existing table """
        if other is None:
            return

        if other.table_type != self.table_type:
            raise TypeError(
                "incompatible table_type with existing "
                f"[{other.table_type} - {self.table_type}]"
            )

        for c in ["index_axes", "non_index_axes", "values_axes"]:
            sv = getattr(self, c, None)
            ov = getattr(other, c, None)