testing.py 文件源码

def set_random_state(estimator, random_state=0):
    """Set random state of an estimator if it has the `random_state` param.

    Classes for whom random_state is deprecated are ignored. Currently DBSCAN
    is one such class.
    """

    if isinstance(estimator, DBSCAN):
        return

    if "random_state" in estimator.get_params():
        estimator.set_params(random_state=random_state)