tldr/pages/common/virtualenv.md

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# virtualenv
> Create virtual isolated Python environments.
> Homepage: <https://virtualenv.pypa.io/>.
- Create a new environment:
`virtualenv {{path/to/venv}}`
- Customize the prompt prefix:
`virtualenv --prompt={{prompt_prefix}} {{path/to/venv}}`
- Start (select) the environment:
`source {{path/to/venv}}/bin/activate`
- Stop the environment:
`deactivate`