如何在 Manjaro 上安装 QGIS 缺少的 Python 模块？

我通过 pamac UI 安装了 QGIS，只是发现它抱怨缺少一些插件所需的两个 Python 模块（osgeo、jinja2）。我的第一个想法是通过 pip 安装它们，但 pip 拒绝这样做：

$ pip install osgeo
error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try 'pacman -S
    python-xyz', where xyz is the package you are trying to
    install.

    If you wish to install a non-Arch-packaged Python package,
    create a virtual environment using 'python -m venv path/to/venv'.
    Then use path/to/venv/bin/python and path/to/venv/bin/pip.

    If you wish to install a non-Arch packaged Python application,
    it may be easiest to use 'pipx install xyz', which will manage a
    virtual environment for you. Make sure you have python-pipx
    installed via pacman.

note: If you believe this is a mistake, please contact your Python installation
or OS distribution provider. You can override this, at the risk of breaking your
Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.

如果我做对了，我必须使用 pacman 来安装系统范围的软件包：

$ sudo pacman -S python-osgeo
error: target not found: python-osgeo

现在我迷路了。Pip 由于某些原因无法工作，如何做的建议也不起作用。有人可以向我解释如何在 Manjaro 上安装 python 包，以便 QGIS 可以使用它的插件吗？