彻底卸载macOS上所有版本Python的详细指南

which -a python
which -a python3
ls -l /Library/Frameworks/Python.framework/Versions/
ls -l /usr/local/bin/python*

/usr/bin/python3              ← 系统自带（不要删）
/usr/local/bin/python3.11     ← 用户安装的（可删）
/Library/Frameworks/Python.framework/Versions/3.11

sudo rm -rf /Library/Frameworks/Python.framework/Versions/3.11
sudo rm -f /Applications/Python\ 3.11
sudo rm -f /usr/local/bin/python3.11
sudo rm -f /usr/local/bin/pip3.11
sudo rm -f /usr/local/bin/idle3.11

brew uninstall python
brew cleanup

which python3
brew list | grep python

rm -rf ~/Library/Python
rm -rf ~/.local/lib/python*
rm -rf ~/.pyenv
rm -rf ~/.virtualenvs

brew uninstall pyenv
rm -rf ~/.pyenv

python3 --version
which python3

export PATH="/usr/local/opt/python@3.11/bin:$PATH"
export PATH="/Library/Frameworks/Python.framework/Versions/3.11/bin:$PATH"

source ~/.zshrc

which -a python
which -a python3

nano ~/uninstall_python.sh

#!/bin/bash
echo "=============================="
echo "  🧹 macOS Python 一键卸载脚本"
echo "=============================="
echo

# 检查权限
if [ "$EUID" -ne 0 ]; then
  echo "⚠️  请使用 sudo 运行此脚本：sudo bash ~/uninstall_python.sh"
  exit
fi

# 卸载 Homebrew 安装的 Python
if command -v brew &>/dev/null; then
  echo "🍺 正在卸载 Homebrew Python..."
  brew uninstall --ignore-dependencies python python@3.9 python@3.10 python@3.11 python@3.12 2>/dev/null
  brew cleanup
fi

# 删除 python.org 安装包的 Python
echo "🧾 正在删除官方安装包版本..."
for v in 3.9 3.10 3.11 3.12 3.13; do
  sudo rm -rf /Library/Frameworks/Python.framework/Versions/$v
  sudo rm -rf "/Applications/Python ${v}"
  sudo rm -f /usr/local/bin/python${v}
  sudo rm -f /usr/local/bin/python${v%.*}
  sudo rm -f /usr/local/bin/pip${v}
  sudo rm -f /usr/local/bin/idle${v}
done

# 删除 pyenv
echo "🐍 正在删除 pyenv..."
brew uninstall pyenv 2>/dev/null
rm -rf ~/.pyenv

# 删除虚拟环境和 pip 缓存
echo "🧩 删除虚拟环境和缓存..."
rm -rf ~/.local/lib/python*
rm -rf ~/Library/Python
rm -rf ~/.virtualenvs
rm -rf ~/Library/Caches/pip

# 清理 PATH 中的 Python 相关路径
echo "🧠 清理 PATH 配置..."
for f in ~/.bash_profile ~/.bashrc ~/.zshrc; do
  [ -f "$f" ] && sed -i '' '/Python.framework/d' "$f"
  [ -f "$f" ] && sed -i '' '/pyenv/d' "$f"
  [ -f "$f" ] && sed -i '' '/python@/d' "$f"
done

# 验证剩余版本
echo
echo "✅ 卸载完成！当前系统保留版本："
which -a python3 || echo "未检测到 Python"
python3 --version 2>/dev/null || echo "无系统 Python 可用"
echo
echo "💡 如果仍检测到非系统路径，可手动检查："
echo "   ls -l /Library/Frameworks/Python.framework/Versions/"

sudo bash ~/uninstall_python.sh

which -a python3