def _munp(self, n, a):
        return _lazywhere(
            a > n + 1, (a, n),
            lambda a, n: special.zeta(a - n, 1) / special.zeta(a, 1),
            np.inf)
dataset/ETHPy150Open scipy/scipy/scipy/stats/_discrete_distns.py/zipf_gen._munp/original