Scripting language runtimes such as Python, Ruby, and Perl are included in macOS for compatibility with legacy software. Future versions of macOS won ’ t include scripting language runtimes by default, and might require you to install additional packages. If your software depends on scripting languages, it ’ s recommended that you bundle the runtime within the app. (49764202)
从这条发展路线来看,可能是 Apple 为了减少系统内置版本与用户手动安装的版本混乱带来的维护问题?