1. 通过 homebrew 安装 pyenv
brew update
brew install pyenv
2. 修改 zsh profile
否则通过pyenv切换python版本会不生效
# 编辑 .zshrc
vim ~/.zshrc
# 在配置下面增加
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/shims:$PATH"
if command -v pyenv 1>/dev/null 2>&1; then
eval "$(pyenv init -)"
fi
# 让修改生效
source ~/.zshrc
3. pyenv 常用命令
# 查看 pyenv 已经管理了哪些 python 版本
pyenv versions
system
2.7.13
* 3.8.9 (set by /Users/yourname/.pyenv/version)
# 使用pyenv安装指定的Python版本
pyenv install -v 3.8.9
pyenv install -v 2.7.13
# 把Python切换到指定版本
pyenv global 3.8.9
# 查看系统当前python版本
python
Python 3.8.9 (default, Jun 23 2021, 14:45:36)
# 查看pyenv当前支持哪些Python版本
pyenv install --list
4.安装遇到的问题
OS X 11.0.1 pyenv No targets specified and no makefile found
解决办法:
sudo rm -rf /Library/Developer/CommandLineTools
xcode-select --install
/usr/bin/xcodebuild -version
but the last command resulted in
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
This led me to this other issue which suggested
sudo xcode-select --switch /Library/Developer/CommandLineTools
and now pyenv install 3.9.1 and pyenv install 3.9.0 went through without a problem.
Unfortunately I am still getting BUILD FAILED (OS X 11.2.1 using python-build 20180424) with
pyenv install 3.8.1
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