dropping py3.6 and supporting other versions

[Dave Brondsema <da...@brondsema.net>]

In https://forge-allura.apache.org/p/allura/tickets/8413/ Dillon has changes to 
drop python 3.6 and only support 3.7, so I wanted to bring it to the mailing 
list to make sure anyone interested was aware.  3.6 is standard on several older 
linux OS releases, but it is end-of-life so I think it makes sense for Allura to 
stop supporting it.  https://endoflife.date/python

Regarding other versions, I think it would be great if we can support all 
versions of CPython that are available at any given time.  Especially since 
newer versions have performance improvements and nice features.  So currently 
thats 3.7 - 3.10.  I'd hope that its not too hard to do that, although last year 
Ingo mentioned it might have challenges: 
https://lists.apache.org/thread/l2gfx9qogwosvd303ryz0y78mo3hkspq  We'll see what 
happens when we try, I suppose, and go from there.

And I think it goes without saying that we can clean up python 2 things in our 
codebase at any time.

P.S. we should do a release, its almost been a year!


-- 
Dave Brondsema : dave@brondsema.net
http://www.brondsema.net : personal
http://www.splike.com : programming
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