安装pyenv

概述1、安装依赖yum-yinstallgcczlib-develbzip2-developenssl-develncurses-develsqlite-develreadline-develtk-develgdbm-develdb4-devellibpcap-develxz-develgit2、安装pyenvgitclonehttps://github.com/yyuu/pyenv.git/opt/app/.pyenv/#配置环境变量 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_profileecho 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profileif command -v pyenv 1>/dev/null 2>&1; then        eval "$(pyenv init --path)"fisource ~/.bash_profile# 查看pyenv版本pyenv -v

3、使用pyenv

pyenv helpUsage: 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 3.6.4python -V

 

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