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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