前言

本文汇总下python环境的安装与卸载。

卸载python环境

• 卸载系统环境内的python环境

python_version_number=3.10
sudo rm -rf /Library/Frameworks/Python.framework/Versions/${python_version_number}/
sudo rm -rf "/Applications/Python ${python_version_number}/"
cd /usr/local/bin && ls -l | grep "/Library/Frameworks/Python.framework/Versions/${python_version_number}" | awk '{print $9}' | sudo xargs rm

• 卸载homebrew中python

# 查看已安装python版本
brew search python
# 查看已安装python版本
brew list | grep python
# 卸载指定python版本
brew uninstall python@3.11

安装

• 通过brew安装
  HomeBrew安装python路径为/opt/homebrew/Cellar/python@3.9里面存放HomeBrew所安装版。

brew install python@3.9

# which命令查看python3程序地址
which python3 

• 通过官网安装
  通过官网https://www.python.org/downloads/macos/下载指定版本，一路点击Next，即可安装。
  安装路径在：/Library/Frameworks/Python.framework/Versions/3.x

# 配置.bash_profile
open ~/.bash_profile
export PATH=${PATH}:/Library/Frameworks/Python.framework/Versions/3.9/bin
export PATH=${PATH}:/Library/Frameworks/Python.framework/Versions/3.9/bin/pip3.9

open ~/.zshrc
在zshrc文件内追加 source ~/.bash_profile

virtualenv

安装虚拟环境

pip3 install virtualenv

# 查看是否安装成功
virtualenv --version

# 创建myenv环境，指定python版本
virtualenv myenv --python=python3.9

# 激活虚拟环境
source myenv/bin/activate

# 关闭虚拟环境
deactivate

# 用完即删
rm -rf myenv

Completely uninstall Python 3 on Mac
Mac下python3的安装和环境配置