Create virtual isolated Python environments. More information: https://virtualenv.pypa.io/en/latest/cli_interface.html.
virtualenv {{path/to/venv}}
virtualenv --prompt {{prompt_prefix}} {{path/to/venv}}
virtualenv {{[-p|--python]}} {{path/to/pythonbin}} {{path/to/venv}}
source {{path/to/venv}}/bin/activate
deactivate