make venv in virtualenv environment code example
Example 1: how to create a new virtualenv
to make a new virtualenv:
virtualenv env_name
to activate this virtual environment:
source env_name/bin/activate (on mac and linux)
source env_name/Scripts/activate (on windows)
Example 2: pyenv create virtualenv
$ pyenv virtualenv 2.7.16 apps2
$ pyenv virtualenv 3.7.4 apps3