Python虚拟环境

1. 确认python解释器的路径

   [root@i-h0xe1oiq ~]# which python3.9
   /usr/local/bin/python3.9
   

2. 安装python虚拟运行环境

   pip3.9 install virtualenv
   pip3.9 install virtualenvwrapper
   

3. 创建目录来存放虚拟环境

   mkdir $HOME/.virtualenvs
   

4. 在~/.bashrc中配置环境变量

   export WORKON_HOME=$HOME/.virtualenvs
   VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3.9
   source /usr/local/bin/virtualenvwrapper.sh
   

5. 加载环境变量

   source ~/.bashrc
   

6. 创建虚拟环境

   [root@i-h0xe1oiq data]# mkvirtualenv -p /usr/local/bin/python3.9 env39
   created virtual environment CPython3.9.7.final.0-64 in 1132ms
     creator CPython3Posix(dest=/root/.virtualenvs/env39, clear=False, no_vcs_ignore=False, global=False)
     seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/root/.local/share/virtualenv)
       added seed packages: pip==21.2.4, setuptools==58.1.0, wheel==0.37.0
     activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator
   virtualenvwrapper.user_scripts creating /root/.virtualenvs/env39/bin/predeactivate
   virtualenvwrapper.user_scripts creating /root/.virtualenvs/env39/bin/postdeactivate
   virtualenvwrapper.user_scripts creating /root/.virtualenvs/env39/bin/preactivate
   virtualenvwrapper.user_scripts creating /root/.virtualenvs/env39/bin/postactivate
   virtualenvwrapper.user_scripts creating /root/.virtualenvs/env39/bin/get_env_details
   (env39) [root@i-h0xe1oiq data]# 		#可以看到创建之后直接进入到了虚拟环境中
   

7. 退出虚拟环境

   (env39) [root@i-h0xe1oiq data]# deactivate 
   [root@i-h0xe1oiq data]# 
   

8. 查看虚拟环境

   [root@i-h0xe1oiq data]# lsvirtualenv 
   env39
   =====
   
   

9. 进入虚拟环境

   [root@i-h0xe1oiq data]# workon env39
   (env39) [root@i-h0xe1oiq data]# 
   

10. 删除虚拟环境

    [root@i-h0xe1oiq data]# rmvirtualenv env39
    Removing env39...