How best to install easygraphics

[Barry_Uk]

Oh Dear ! I seem to have fallen at the first hurdle !!
I'm trying to follow the hitchhikers guide to installing the latest python the right way
https://docs.python-guide.org/starting/i...g-it-right
which says I need to install GCC first. This leads me to
https://github.com/not-kennethreitz/osx-...ler#readme
This isn't that clear. Because I don't want to install Xcode unless absolutely necessat it suggests that I can download pre-built binaries from
https://github.com/kennethreitz/osx-gcc-...7-v0.3.zip

When I do this I find that this version is for Mac OS X Lion only. Message
"Lion Only. OS X Lion is the only supported platform "

Lion is several years old and I have Catalina.

Help ! Where do I go from here ?