所以我试图在 Mac OSX El Capitan 版本 10.11.6 上使用 Homebrew 重新安装 python3，但我不断收到错误。我用来安装 python3 的命令如下：
$ brew install python3
第一个命令似乎工作正常，没有抛出错误。
$ brew linkapps
第二个命令会引发以下错误：
Warning: `brew linkapps` has been deprecated and will eventually be removed!
Unfortunately `brew linkapps` cannot behave nicely with e.g. Spotlight using
either aliases or symlinks and Homebrew formulae do not build "proper" `.app`
bundles that can be relocated. Instead, please consider using `brew cask` and
migrate formulae using `.app`s to casks.
Linking: /usr/local/opt/python/IDLE.app
Linking: /usr/local/opt/python/Python Launcher.app
Linking: /usr/local/opt/python3/IDLE …python ×1