Mac 升级 Python2.7 到 Python3.5

时间 2019-11-24 标签 mac 升级 python2.7 python 2 7 python3.5 python 3 5

一、去 Python 官网下载一个版本的包 https://www.python.org/downloads/mac-osx/ python

二、安装以后，去 /Library/Frameworks/Python.framework/Versions/3.5 下检查一下是否是多了一个3.5 bash

若是没有就在/System/Library/Frameworks/Python.framework/Versions/3.5spa

三、vi ~/.base_profilecode

把 2.7 的版本注释掉加上 3.5的。以下：blog

# Setting PATH for Python 2.7

# The original version is saved in .bash_profile.pysave

#PATH="/Library/Frameworks/Python.framework/Versions/2.7/bin:${PATH}"

#export PATH

#export PATH=/usr/local/bin:$PATH



 

# Setting PATH for Python 3.5

# The original version is saved in .bash_profile.pysave

PATH="/Library/Frameworks/Python.framework/Versions/3.5/bin:${PATH}"


export PATH

export PATH=/usr/local/bin:$PATH

alias python="/Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5"

四、使路径生效get

source ~/.bash_profile