mac:python安装路径

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了解python的安装路径,有利于处对python安装的管理。比如删除多余的python,可以在这些路径中查询处理。



一、Mac下python的安装路径



1、Mac自带python路径

/System/Library/Frameworks/Python.framework/Versions

对应系统 pip 安装的第三方库的安装路径:

/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python



2、Mac中自己安装的python3.x的路径

/Library/Frameworks/Python.framework/Versions/3.x

对应 pip 安装的第三方库的安装路径: ( 比如Django Flask 都是安装在这里 )

Library/Frameworks/Python.framework/Versions/3.x/lib/python3.x/site-packages



3、homebrew安装python路径

/usr/local/Cellar/python@2         //@2 表示python版本,也可以是 @3

homebrew 安装的外部包的安装路径:

/Library/Python



二、brew 安装指定版本 python3



1、安装

brew install python@3.8



2、错误处理

xcrun: error: invalid active developer path (/Applications/Xcode.app/Contents/Developer)


原因

:卸载了Xcode或者升级Xcode导致


处理

sudo xcode-select -r
sudo /usr/bin/xcode-select --switch /Library/Developer/CommandLineTools
xcode-select -p

相关:

Mac 之 Command Line Tools



3、查看安装路径


方法一

:terminal

python3
>>> import sys
>>> sys.path

打印结果:

['', 
'/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python38.zip', 
'/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8', 
'/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/lib-dynload', 
'/Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/site-packages', 
'/Library/Python/3.8/site-packages', 
'/Library/Python/3.8/site-packages/Django-4.0.4-py3.8.egg']


方法二

:terminal

which python3


方法三

:mac版Pycharm第三方库路径

/Library/Python



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