utils.py 文件源码

def get_random_state(random_state):
    # if it's a seed, return a new seeded RandomState
    if isinstance(random_state, (int, np.int, long, np.long, NoneType)):
        return RandomState(random_state)
    # if it's a RandomState, it's been initialized
    elif isinstance(random_state, RandomState):
        return random_state
    else:
        raise TypeError('cannot seed new RandomState with type=%s'
                        % type(random_state))