WARNING: You are using pip version 21.2.3 however, version 24.2 is available.

在使用Python的包管理工具 pip 时，用户可能会遇到类似“WARNING: You are using pip version 21.2.3; however, version 24.2 is available.”的警告信息。这一提示表明当前安装的pip版本较旧，而新的版本已经发布。保持pip更新至最新版本不仅可以获得最新的功能和性能优化，还能修复已知的错误和安全漏洞。

1、错误提示：

E:\Python>pip install pywin32-ctypes
Collecting pywin32-ctypes
  Downloading pywin32_ctypes-0.2.3-py3-none-any.whl (30 kB)
Installing collected packages: pywin32-ctypes
Successfully installed pywin32-ctypes-0.2.3
WARNING: You are using pip version 21.2.3; however, version 24.2 is available.
You should consider upgrading via the 'D:\Program Files\Python39\python.exe -m pip install --upgrade pip' command.

2、升级方法：

python -m pip install --upgrade pip

3、验证是否升级成功：

E:\Python>pip -V
pip 24.2 from D:\Program Files\Python39\lib\site-packages\pip (python 3.9)

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