Mac下python2升級3

1.下載python最新版本 

　🔗連接：https://www.python.org/downloads/mac-osx/

安裝默認位置爲： /Library/Frameworks/Python.framework/Versions/3.5/  

2.打開終端，修改~/.bash_profile文件

代碼以下：
# Setting PATH for Python 3.6
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.6/bin:${PATH}"
export PATH

alias python="/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6"

 

3.重啓終端或執行

source ~/.bash_profile