Mac 升級 Python2.7 到 Python3.5

1、去 Python 官網下載一個版本的包 https://www.python.org/downloads/mac-osx/ 

 

2、安裝之后，去  /Library/Frameworks/Python.framework/Versions/3.5 下檢查一下是不是多了一個3.5

如果沒有就在/System/Library/Frameworks/Python.framework/Versions/3.5

 

3、vi ~/.base_profile

 

把 2.7 的版本注釋掉 加上 3.5的。如下：

 

# 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"

4、使路徑生效

source ~/.bash_profile