Blink is a traffic model.
To install virtualenv via pip run:
$ pip3 install virtualenvCreation of virtualenv:
$ virtualenv -p python3 <desired-path>Activate the virtualenv:
$ source <desired-path>/bin/activateDeactivate the virtualenv:
$ deactivateInstall required libraries
$ pip3 install -r requirements.txtInstall new libraries
$ pip3 install <library-name>Update requirements
$ pip3 freeze > requirements.txt