1、个人安装环境
1.1 CentOS Linux release 7.7.1908 (Core)
2、安装步骤
2.1 查找python3命令路径
[root@localhost ~]# find / -name python3 /root/envs/py3test/bin/python3 /root/envs/p3test/bin/python3 /usr/bin/python3 /home/admin/Envs/py3test/bin/python3
路径为:/usr/bin/python3
2.2 查找virtualenvwrapper.sh脚本的路径
[root@localhost ~]# whereis virtualenvwrapper.sh virtualenvwrapper: /usr/local/bin/virtualenvwrapper.sh
2.3 安装virtualenvwrapper
yum install python-setuptools python-devel pip3 install virtualenvwrapper
2.4 编辑bashrc
[root@localhost ~]# vim .bashrc
添加如下内容:
WORKON_HOME=~/Envs VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3 source /usr/local/bin/virtualenvwrapper.sh
解释如下:
- WORKON_HOME为设置virtualenv的统一管理目录
- VIRTUALENVWRAPPER_PYTHON指定python解释器的本体;
需要特别注意,CentOS中默认安装python2,如果这边不指定,创建虚拟环境时将提示/usr/bin/python: No module named virtualenvwrapper
- source执行virtualenvwrapper安装脚本
2.5 应用如上修改
source ~/.bashrc
3、虚拟环境使用
3.1 新建虚拟环境
3.1.1 新建python2环境
[root@localhost ~]# mkvirtualenv -p /usr/bin/python p2test
3.1.2 新建python3环境
[root@localhost ~]# mkvirtualenv p3test
3.2 查看所有的虚拟环境
[root@localhost ~]# workon
运行结果:
p2test p3test
3.3 进入指定的虚拟环境
[root@localhost ~]# workon p2test
(p2test) [root@localhost ~]# python
运行结果:
Python 2.7.5 (default, Aug 7 2019, 00:51:29) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>>
3.4 退出虚拟环境
(p2test) [root@localhost ~]# deactivate
3.5 删除虚拟环境
[root@localhost ~]# rmvirtualenv py3test