1.使用一下命令安装
brew install python3
2.如果出现以下错误:
Warning: python3 3.6.3 is already installed, it’s just not linked.
You can use brew link python3
to link this version.
运行 brew link python3
3.出现以下错误:
Linking /usr/local/Cellar/python/3.6.5… Error: Permission denied @ dir_s_mkdir - /usr/local/Frameworks/Python.framework
发现/usr/local/下没有路径/usr/local/Frameworks
需要新建该路径,并修改权限
运行以下命令
sudomkdir/usr/local/Frameworks
s
u
d
o
m
k
d
i
r
/
u
s
r
/
l
o
c
a
l
/
F
r
a
m
e
w
o
r
k
s
sudo chown $(whoami):admin /usr/local/Frameworks
4.重新运行以下命令
brew link python3
5.查看版本命令
python –version