Demystifying Python Virtual Environments on UNIX/Linux/MacOS

Use Python virtual environments without the magic.

[TresSeaver]

To deactivate an activated virtual environment, either type `deactivate` (which is a shell function created by sourcing `bin/activate`) or else `<Ctrl-D>` (which exits the subshell created by sourcing `bin/activate`). You can tell you are in an activated virtual environment by looking at the shell prompt, or by looking for the `VIRTUAL_ENV` variable in the environment (`echo $VIRTUAL_ENV`).

[艾曦-eg]

A shorter version with concise content focusing on the topic will be much better.