Mac Python安装

1.首先安装home brew

官网地址：https://brew.sh

执行命令进行安装

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

卸载Home Brew

执行命令：

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"  

2.终端执行安装python

brew install python

mac自带python2.7，查看python3的安装路径

/usr/local/Cellar/python

如果上面这个路径下面有安装包，证明安装成功。终端执行  python3,即可查看python的版本。

如果要在终端执行python，即使python也是python3，则配置如下环境变量

export PATH=${PATH}:/usr/local/Cellar/python/3.7.5/bin
alias python="/usr/local/Cellar/python/3.7.5/bin/python3"
alias pip="/usr/local/Cellar/python/3.7.5/bin/pip3"