How to deactivate virtualenv

The virtualenv command deactivates a virtual environment. The virtual environment is deactivated by deleting the activated directory and removing all files in it, including the activation script. This means that when you activate a new virtual environment, it will create its own activation script and directory, which must be deleted before deactivating the previous one.

Virtualenv is great for testing but can also be used to create production-ready environments.
If you are creating an environment for your application, you should not use virtualenv for production deployment.