linux ubuntu pip3 list 出现警告

错误重现

 执行pip3 list后出现

DEPRECATION: The default format will switch to columns in the future. You can use --format=(legacy|columns) (or define a format=(legacy|columns) in your pip.conf under the [list] section) to disable this warning.

解决方法

1. 在/etc下新建pip.conf:
   sudo nano /etc/pip.conf
2. 写入
   [list] format=columns
ctrl x Y 保存
3. 再次执行pip3 lsit