Python3
pip3 安装软件包报错
error: externally-managed-environment
error: externally-managed-environment
× This environment is externally managed
╰─> To install Python packages system-wide, try brew install
    xyz, where xyz is the package you are trying to
    install.
    If you wish to install a Python library that isn't in Homebrew,
    use a virtual environment:
    python3 -m venv path/to/venv
    source path/to/venv/bin/activate
    python3 -m pip install xyz
    If you wish to install a Python application that isn't in Homebrew,
    it may be easiest to use 'pipx install xyz', which will manage a
    virtual environment for you. You can install pipx with
    brew install pipx
    You may restore the old behavior of pip by passing
    the '--break-system-packages' flag to pip, or by adding
    'break-system-packages = true' to your pip.conf file. The latter
    will permanently disable this error.
    If you disable this error, we STRONGLY recommend that you additionally
    pass the '--user' flag to pip, or set 'user = true' in your pip.conf
    file. Failure to do this can result in a broken Homebrew installation.
解决
不使用虚拟环境,则以下方法任选其一:
1.在命令行参数添加--break-system-packages
或者改 zsh 配置文件
2.改 pip 配置文件