【机器学习】python报错ImportError:[joblib]Attemptingtodoparallelcomputingwithoutprotecting

1、错误现像&＃xff1a;

ImportError: [joblib] Attempting to do parallel computing without protecting your import on a system that does not support forking. To use parallel-computing in a script, you must protect your main loop

2、错误分析&＃xff1a;

要在脚本中使用并行计算&＃xff0c;必须保护主循环。这里没有保护好循环。简单点说就是python文件中缺少主函数

3、解决方法&＃xff1a;

if __name__ &＃61;&＃61; "__main__": # 加上这一行即可cv &＃61; ShuffleSplit(n_splits&＃61;20, test_size&＃61;0.2, random_state&＃61;0)plot_learning_curve(model, "学习曲线", X_train, y_train, (0.6, 1.01), cv&＃61;cv, n_jobs&＃61;4)plt.show()