使用brew install python3安装python3之后 我收到错误：

Error: An unexpected error occurred during the `brew link` step
The formula built, but is not symlinked into /usr/local
Permission denied @ dir_s_mkdir - /usr/local/Frameworks
Error: Permission denied @ dir_s_mkdir - /usr/local/Frameworks

键入brew link python3后，错误为：

Linking /usr/local/Cellar/python/3.6.4_3... Error: Permission denied @ dir_s_mkdir - /usr/local/Frameworks

要解决问题，请执行以下操作：

sudo mkdir -p /usr/local/Frameworks
sudo chown -R $(whoami) /usr/local/*
brew link python3

之后，我可以通过键入python3👍

(来自https://github.com/Homebrew/homebrew-core/issues/20985)