F23 System Wide Change: Python 3 as Default

[Bohuslav Kabrda]

----- Original Message -----
> On Thu, Jun 11, 2015, at 04:40 PM, Adam Miller wrote:
> 
> > I think the point that Colin is trying to make is that while Atomic
> > Host does not depend on Ansible being installed, it is a very popular
> > utility used to remotely manage (potentially large) sets of Atomic
> > Hosts.
> 
> Right, see
> https://github.com/eparis/kubernetes-ansible
> as well as
> https://lists.projectatomic.io/projectatomic-archives/atomic-devel/2015-April/msg00027.html
> 
> > Also, while Ansible is agentless it does require the remote
> > machine to have python2 installed. Therefore, Fedora Atomic Host is
> > likely to continue to ship Python 2.x as a part of it's default
> > installation as it's in the best interest of a large population of
> > it's user base.
> 
> Right.

Ah, ok, that's what I needed to hear :)

> > So for the time being, the switch to python3 as default for Atomic
> > Host might not be an option or at the very least will be non-trivial
> > in terms of what is in the best interest of the users.
> 
> This could be read in multiple ways, so to restate this (again for
> the Nth time, not sure why I'm having trouble getting the point across),
> I am just saying that the end result will be *both* versions.
> 
> Again: *both* versions.  Python 2 *and* Python 3.
> 
> Everything could be ported, except Python 2 would still be installed
> even if no package on the host depended on it explicitly.
> 
> (Hmm, I should propose a patch to add it to the manifest,
>  right now it's pulled in indirectly)

Yeah, that'd be very good. I'd probably also advise to add a comment explaining why it's there. Just to make sure that people who come across are aware of it.

> Which is a space increase, but we'll just live with it.
> 
> (I'm not the only person who works on Atomic Host so don't
>  take my opinions here as entirely representative or final, but I'm
>  stating my opinions based on current resourcing)

Thanks.

> For how long would Python 2 be installed?  I don't know
> but the conservative answer would probably be measured in
> units of major versions.

-- 
Regards,
Slavek Kabrda