1.ubuntu16.04更新pip3之後報錯，需要按照https://blog.csdn.net/weixin_40208575/article/details/81392076 提供的方法來修改代碼
2. pip3 install ipython 報錯
ERROR: Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/usr/local/lib/python3.5/dist-packages/ipython_genutils-0.2.0.dist-info'
Consider using the `--user` option or check the permissions.
需要按照 pip3 install ipython --user 來解決
