The older Python language, version 2.7, is being deprecated in macOS 10.15 Catalina and won’t be included in macOS 10.16. The same goes for other UNIX scripting languages.
The new 2018 MacBook Pro has us all talking. But here’s the best review of them all that John has seen. From a NASA engineer.
In macOS Sierra and even High Sierra, Apple provides only Python 2.7, but if you need to install and work with Python 3.x, this article shows how to do it.