def _scalar_binopt(self, other, op):
        self.sum_duplicates()
        res = self._with_data(op(self.data, other), copy=True)
        res.eliminate_zeros()
        return res
Scalar version of self._binopt, for cases in which no new nonzeros
dataset/ETHPy150Open scipy/scipy/scipy/sparse/compressed.py/_cs_matrix._scalar_binopt