Centos7安装Python虚拟环境之virtualenv

一、安装自己需要的python版本

步骤略

二、安装virtualenv模块并创建虚拟环境

[root@localhost ~]# /usr/local/python3.6.8/bin/pip3 install virtualenv
[root@localhost ~]# /usr/local/python3.6.8/bin/virtualenv --version
[root@localhost ~]# mkdir py_virtual
[root@localhost ~]# cd py_virtual
[root@localhost py_virtual]# /usr/local/python3.6.8/bin/virtualenv test
[root@localhost py_virtual]# ll
总用量 0
drwxr-xr-x. 4 root root 64 9月  26 09:55 test
[root@localhost py_virtual]# cd test1/
[root@localhost py_virtual]# source bin/activate  #激活虚拟环境
(test) [root@localhost py_virtual]# python -V
Python 3.6.8 
(test) [root@localhost ~]# deactivate  #退出虚拟环境　

三、指定其他python版本创建

[root@localhost py_virtual]# /usr/local/python3.6.8/bin/virtualenv --python /usr/local/python3.5.7/bin/python3 test1
[root@localhost py_virtual]# ll
总用量 0
drwxr-xr-x. 4 root root 64 9月  26 09:55 test
drwxr-xr-x. 4 root root 64 9月  26 10:09 test1
[root@localhost py_virtual]# cd test1/
[root@localhost test1]# source bin/activate
(test1) [root@localhost test1]# python -V
Python 3.5.7