# How to leave/exit/deactivate a Python virtualenv?

To leave a Python virtual environment, you can use the `deactivate` command. This will return you to the system's default Python environment.

Here's an example of how you would use `deactivate`:

```bash
source deactivate
```

Alternatively, you can simply close the terminal window or tab in which the virtual environment was activated. This will also return you to the system's default Python environment.

If you want to reactivate the virtual environment later, you can use the `activate` command again. For example:

```bash
source activate myenv
```

This will reactivate the virtual environment named `myenv`.