python下运行import sklearn.model_selection 出错ImportError: No module named model_selection解决方法
fromsklearnimportdatasets,svmfromsklearn.model_selectionimporttrain_test_splitfromsklearn.metricsimportconfusion_matrixiris=datasets.load_iris()X=iris.data[:,:2]y=iris.targetwindows下anaconda的spyder运行一