Python 解决warining的方法FutureWarning: warnings.warn(CV_WARNING, FutureWarning)

错误情况

错误出在  1978行

E:\python3.7.3\lib\site-packages\sklearn\model_selection\_split.py:1978: FutureWarning: The default value of cv will change from 3 to 5 in version 0.22. Specify it explicitly to silence this warning.
  warnings.warn(CV_WARNING, FutureWarning)

解决方法

将下面代码加入，然后修改lineno参数

import warnings
warnings.filterwarnings("ignore", category=FutureWarning, module="sklearn", lineno=1978)


lineno参数配置成报错的行号