arch linux python venv

0x00 前言

直接使用全局pip安装库的，会有如下error

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.

最好是创建虚拟环境

create a virtual environment using 'python -m venv path/to/venv'.

我们可以一个项目一个虚拟环境

0x01举例

我们进入项目的根目录后，执行如下命令即可

 python -m venv venv
 source venv/bin/activate

0x02结果

出现(venv)就成功了

(venv) [lenove@lenove-82er 题目附件]$ pip list
Package    Version
---------- -------
pip        23.2.1
setuptools 65.5.0

[notice] A new release of pip is available: 23.2.1 -> 23.3.2
[notice] To update, run: pip install --upgrade pip