1、安装依赖
yum -y install gcc zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel git
2、安装pyenv
git clone https://github.com/yyuu/pyenv.git /opt/app/.pyenv/ # 配置环境变量 echo 'export PYENV_ROOT="/opt/app/.pyenv"' >> ~/.bash_profile echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile if command -v pyenv 1>/dev/null 2>&1; then eval "$(pyenv init --path)" fi source ~/.bash_profile # 查看pyenv版本 pyenv -v
3、使用pyenv
pyenv help Usage: pyenv <command> [<args>] Some useful pyenv commands are: commands List all available pyenv commands exec Run an executable with the selected Python version global Set or show the global Python version(s) help Display help for a command hooks List hook scripts for a given pyenv command init Configure the shell environment for pyenv install Install a Python version using python-build local Set or show the local application-specific Python version(s) prefix Display prefix for a Python version rehash Rehash pyenv shims (run this after installing executables) root Display the root directory where versions and shims are kept shell Set or show the shell-specific Python version shims List existing pyenv shims uninstall Uninstall a specific Python version version Show the current Python version(s) and its origin --version Display the version of pyenv version-file Detect the file that sets the current pyenv version version-name Show the current Python version version-origin Explain how the current Python version is set versions List all Python versions available to pyenv whence List all Python versions that contain the given executable which Display the full path to an executable
4、使用pyen安装python
# 使用 pyenv install --list 查看可以安装的python版本,安装3.6.4版本 pyenv install 3.6.4 # 安装完成后目录所在 /opt/app/.pyenv/versions # 查看可使用的版本,前面带*表示当前使用的版本 pyenv versions # 查看当前使用的版本 pyenv version
5、配置及管理python版本
# pyenv管理python版本的三个基础命令 pyenv global <version> pyenv shelll <version> pyenv local <version> # 使用pyenv global <version>配置当前用户的系统使用的python版本 pyenv global 3.6.4 python -V