def-env deactivate-virtualenv [] {
    def has-env [name: string] {
        $name in (env).name
    }

    let is_windows = ((sys).host.name | str downcase) == 'windows'

    let path_name = if $is_windows {
        if (has-env 'Path') {
            'Path'
        } else {
            'PATH'
        }
    } else {
        'PATH'
    }

    load-env { $path_name : $env._OLD_VIRTUAL_PATH }

    let-env PROMPT_COMMAND = $env._OLD_PROMPT_COMMAND

    # Hiding the environment variables that were created when activating the env
    hide _OLD_VIRTUAL_PATH
    hide _OLD_PROMPT_COMMAND
    hide VIRTUAL_ENV
    hide VIRTUAL_PROMPT
}

deactivate-virtualenv

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