一、问题描述

windows系统在Anaconda prompt运行

pip install cx_Oracle

安装cx_Oracle库报错，python版本3.12.7，报错：

• ERROR: Failed to build installable wheels for some pyproject.toml based projects (cx_Oracle)
• ERROR: Failed building wheel for cx_Oracle
• error: Microsoft Visual C++ 14.0 or greater is required. Get it with “Microsoft C++ Build Tools”: https://visualstudio.microsoft.com/visual-cpp-build-tools/
• error: subprocess-exited-with-error
  

二、原因

上面所有报错，其实关键是下面这条报错造成，是因为电脑缺少Microsoft Visual C++ 14.0 or greater 的编译器，下载并安装Microsoft Visual C++ Build Tools后即可解决问题。

error: Microsoft Visual C++ 14.0 or greater is required. Get it with
“Microsoft C++ Build Tools”:
https://visualstudio.microsoft.com/visual-cpp-build-tools/

三、解决方案

最简单方法下载一个社区版的visualstudio IDE，里面把C++编译器选上安装，VisualStudio免费社区版下载。