python学习之pyenv环境搭建

Posted 2020-11-01

1.安装git,github地址为https://github.com/pyenv/pyenv-installer/
 yum install git -y

2.安装python编译依赖环境
 yum -y install gcc make patch gdbm-devel openssl-devel sqlite-devel     readline-devel zlib-devel bzip2-devel

3.创建python用户用于搭建pyenv专用于python多版本管理环境
 useradd python
 passwd python 

4.安装pyenv环境
 curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash

5.在python用户的环境变量目录~/.bash_profile下添加环境变量
 export PATH
 export PATH="/home/python/.pyenv/bin:$PATH"
 eval "$(pyenv init -)"
 eval "$(pyenv virtualenv-init -)"

6.python查看版本命令：python --version
   pyenv命令：
     pyenv install -l #列出所有能安装的包
     pyenv help
         local       #指定本地pyenv环境，其目录下所有子目录都会递归继承其属性
         global     #指定全局的环境
         shell       #指定当前会话
         install     #指定安装的版本
         uninstall #卸载指定的安装环境包
         rehash   
         version   #查看当前环境使用的pyenv版本
         versions #查看所有的存在的pyenv版本，带*号的为当前的pyenv环境版本
         which    
       whence   

7.virtualenv虚拟环境设置
  [[email protected] python3.5.3]$ pyenv versions
   system
 * 3.5.3 (set by /home/python/python3.5.3/.python-version)
   3.6.2

 [[email protected] python3.5.3]$ pyenv virtualenv 3.5.3 3-5-3 #将3.5.3版本的python命名为3-5-3的别名
 Requirement already satisfied: setuptools in /home/python/.pyenv /versions/3.5.3/envs/3-5-3/lib/python3.5/site-packages
 Requirement already satisfied: pip in /home/python/.pyenv/versions/3.5.3/envs/3-5-3/lib/python3.5/site-packages
 [[email protected] python3.5.3]$ pyenv versions
  system
  3-5-3
* 3.5.3 (set by /home/python/python3.5.3/.python-version)
  3.5.3/envs/3-5-3
  3.6.2

 [[email protected] python3.5.3]$ pyenv local 3-5-3 #使用虚拟环境时前面多出了一个名称
 (3-5-3) [[email protected] python3.5.3]$ pyenv version
 3-5-3 (set by /home/python/python3.5.3/.python-version)
 (3-5-3) [[email protected] python3.5.3]$