问题1：Anaconda的使用权限
$ conda update conda
Solving environment: failed
NotWritableError: The current user does not have write permissions to a required path.
path: /path/to/custom/dir/pkgs/urls.txt
uid: 1000
gid: 1000
使用如下命令：sudo chown -R user anaconda3
原文：https://www.cnblogs.com/rookiezjz/p/12521085.html