How to create a virtual environment for Python in Ubuntu

WHY to use and HOW TO INSTALL a virtual environment on your new Python project, step by step. Easy way to use pip freeze to have your environment easy to replicate.
WHY to use and HOW TO INSTALL a virtual environment on your new Python project, step by step. Easy way to use pip freeze to have your environment easy to replicate.
Veja também
Docker: failed to build: max depth exceeded
Super detailed animation on how a Black Hawk Helicopter works!
Docker exec not working inside cron! SOLVED
Docker + VirtualBox on Windows 10
(RESOLVED) Can not authenticate to IMAP server: [ALERT] Please log in via your web browser
How to recover a MySQL or Percona database backup
WordPress from PHP 5.6 to PHP 7.2! Better performance?