Future of Python 2.6 and Jython in Fedora

[Miro Hrončok]

In Fedora, we advertise "all the Pythons" are available and developers 
may use them with venv, virtualenv, tox.

https://developer.fedoraproject.org/tech/languages/python/multiple-python...

Two of the interpreters we ship are quite problematic in this regard.

### Python 2.6

  - virtualenv 16.x dropped support for 2.6 and we dirty patched it back
  - tox 3 dropped support for 2.6
  - pip/setuptools dropped support for 2.6 and our patched virtualenv 
uses an older version of pip and setuptools to make work

However, I know there are developers who use Python 2.6 in Fedora 
(namely because their software maintains RHEL 6 compatibility).

I propose that we indicate on Fedora Developer Portal that Python 2.6 is 
provided as is and that it may not work with virtualenv/tox. We maintain 
the current patch of virtualenv at least for the lifetime of Fedora 29, 
but if an upgrade of virtualenv is done, we ditch that patch from Fedora 
30+.

We also mark it deprecated and schedule the removal for EPEL 6 EOL 
(AFAIK late 2020).

### Jython

  - virtualenv somehow works but is not officially supported
  - pip is not supported and has hesisenbugs

I know nobody who uses Jython with virtualenv and tox.

I propose that we indicate on Fedora Developer Portal that Jython is 
provided as is and that it may not work with virtualenv/tox.

(No scheduled removal.)

Thoughts?
-- 
Miro Hrončok
--
Phone: [phone]
IRC: mhroncok