目录
安装 Python2
MAC 系统已经默认带有 Python2.7 了，所以无需安装它。
安装 Python3
brew install python3
- 系统默认(2.7)：/System/Library/Frameworks/Python.framework/Versionshttps://cdn.jxasp.com:9143/image/2.7
- brew安装(2.7/3.x)：/usr/local/Cellar/python
- 官网pkg安装(3.x)：/Library/Frameworks/Python.framework/Versions/3.x
不同版本Python路径
MAC 系统自带 Python2.7，而我们安装 Python3 的时候，可以通过 brew 命令安装或者官网的 pkg 安装。安装后，它们的文件保存路径如下：
配置 Python2 和 Python3
vi ~/.bash_profile
# Setting PATH for Python 2.7
PATH="/System/Library/Frameworks/Python.framework/Versionshttps://cdn.jxasp.com:9143/image/2.7/bin:${PATH}"
# Setting PATH for Python 3.6.5
PATH="/usr/local/Cellar/python/3.6.5/bin:${PATH}"
export PATH
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vi ~/.bashrc
alias python2='/System/Library/Frameworks/Python.framework/Versionshttps://cdn.jxasp.com:9143/image/2.7/bin/python2.7'
alias python3='/usr/local/Cellar/python/3.6.5/bin/python3.6'
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