mac 安装和配置python 3

1、下载安装包
打开python官网
https://www.python.org/downloads/mac-osx/
选择类似这种格式的安装包按实际需要的版本进行下载安装

vi ~/.bash_profile

添加
alias python=“/Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7”
export PATH=$PATH:/Library/Frameworks/Python.framework/Versions/3.7/bin/pip3.7
alias pip=“/Library/Frameworks/Python.framework/Versions/3.7/bin/pip3.7”