Chinese document
https://docs.python.org/zh-cn/3.8/tutorial/venv.html
https://blog.csdn.net/qq_22022063/article/details/78979367
python3 -m venv acheryvenv
cd ~/dba/acheryvenv/bin/
activation
source ~/dba/acheryvenv/bin/activate
sudo pip3 install virtualenv
View version
virtualenv --version
