Install pyenv systemwide

    CLI Example:

    .. code-block:: bash

        salt '*' pyenv.install

def install(runas=None, path=None):
    '''
    Install pyenv systemwide

    CLI Example:

    .. code-block:: bash

        salt '*' pyenv.install
    '''
    path = path or _pyenv_path(runas)
    path = os.path.expanduser(path)
    return _install_pyenv(path, runas)