vps无法使用pip3安装需要的环境的解决办法

例如出现下面的问题：

:~# sudo apt install python3-curl-cffi
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package python3-curl-cffi
root@v2202511239875404429:~# pip3 install curl-cffi
error: externally-managed-environment

× This environment is externally managed
╰─> To install Python packages system-wide, try apt install
    python3-xyz, where xyz is the package you are trying to
    install.
    
    If you wish to install a non-Debian-packaged Python package,
    create a virtual environment using python3 -m venv path/to/venv.
    Then use path/to/venv/bin/python and path/to/venv/bin/pip. Make
    sure you have python3-full installed.
    
    If you wish to install a non-Debian packaged Python application,
    it may be easiest to use pipx install xyz, which will manage a
    virtual environment for you. Make sure you have pipx installed.
    
    See /usr/share/doc/python3.11/README.venv for more information.

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.

或者类似这样的问题，都可以使用 --break-system-packages 强制全局安装 (风险操作) 运行：

pip3 install curl-cffi --break-system-packages

即可强制安装。