> We only print simplified message in official binary release, any 
> Linux/private builds still using the current message. We know enough 
> information about official binary release.

Who is "we" in this sentence?

Are you saying that the Python.org binary releases here:

https://www.python.org/downloads/release/python-372/

for example don't print the same information as source releases? I 
don't have either Windows or Mac and so cannot test it for myself.

> Junior users are people such as students learning programming in 
> middle school, I think git information will confuse them, maybe many 
> of them will never know git knowledges.

Why is this important? Surely they won't be tested on their 
understanding of the git tag information printed at startup. They can 
just ignore the information.

If you are really going to push this idea that the information currently 
printed at startup is confusing to beginners, then we can ask educators 
like Raymond Hettinger and others who have been teaching Python for many 
years and see what their experience has been.

But for what it is worth, in 15+ years of asking questions from 
beginners on various mailing lists, I don't believe I have ever seen 
anyone ask about that information. If it happens, it happens rarely.

> Another problem is indicating 32bit or 64bit build, IMHO this is an 
> useful information.

And that information is currently printed at startup.