在mac上安装jupyter notebook后，当在终端上启动jupyter时出现
Failed to write server-info to /Users/mac/Library/Jupyter/runtime/nbserver-5957.json: [Errno 13] Permission denied: ‘/Users/mac/Library/Jupyter/runtime/nbserver-5957.json
问题，正确命令：sudo jupyter notebook --allow-root
原文：https://www.cnblogs.com/yang-he/p/12551462.html