1.python3自己安装
ln -s /usr/local/python3/bin/python3.6 /usr/bin/python3 ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
一、第一种虚拟环境
2.创建虚拟环境
pip3 install virtulenv # 创建虚拟环境env2 mkdir /home/python/virtualenvs [root@Master virtualenvs]# virtualenv -p /usr/bin/python3 env2 Running virtualenv with interpreter /usr/bin/python3 Using base prefix '/usr' New python executable in /home/python/virtualenvs/env2/bin/python3 Not overwriting existing python script /home/python/virtualenvs/env2/bin/python (you must use /home/python/virtualenvs/env2/bin/python3) Installing setuptools, pip, wheel...done. # 进入虚拟环境 [root@Master python]# source /home/python/virtualenvs/env2/bin/activate (env2) [root@Master python]# python Python 3.6.8 (default, Nov 16 2020, 16:55:22) [GCC 4.8.5 20150623 (Red Hat 4.8.5-44)] on linux Type "help", "copyright", "credits" or "license" for more information. # 退出虚拟环境 (env2) [root@Master python]# deactivate [root@Master python]#
生成环境中,最好使用这种模式,这样python2和python3就互不干涉了
二、第二种虚拟环境创建方式
pip3 install virtualenvwrapper # 创建虚拟环境目录 mkdir -p /home/python/virtualenvs vim /root/.bashrc export WORKON_HOME=/home/python/virtualenvs source /usr/local/bin/virtualenvwrapper.sh # 可以whereis找到 source /root/.bashrc # 创建虚拟环境 cd /home/python/virtualenvs3 # vname为虚拟环境名称 [root@node1 virtualenvs]# mkvirtualenv vname -p /usr/bin/python3 created virtual environment CPython3.6.8.final.0-64 in 474ms creator CPython3Posix(dest=/home/python/virtualenvs/vname, 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==21.3.1, setuptools==58.3.0, wheel==0.37.0 activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator /usr/bin/python: No module named virtualenvwrapper # 列出虚拟环境列表 [root@node1 virtualenvs]# workon vname # 启动/切换虚拟环境 [root@node1 virtualenvs]# workon vname # 退出虚拟环境 (vname) [root@node1 virtualenvs]# deactivate # 删除虚拟环境 [root@node1 virtualenvs]# rmvirtualenv vname Removing vname...