[Python-Dev] Promoting Python 3 [was: PyPy 1.7 - widening the sweet spot]

David Malcolm dmalcolm at redhat.com
Tue Nov 22 18:27:47 CET 2011

On Tue, 2011-11-22 at 09:13 -0800, Toshio Kuratomi wrote:
> On Wed, Nov 23, 2011 at 01:41:46AM +0900, Stephen J. Turnbull wrote:
> > Barry Warsaw writes:
> > 
> >  > Hopefully, we're going to be making a dent in that in the next version of
> >  > Ubuntu.
> > 
> > This is still a big mess in Gentoo and MacPorts, though.  MacPorts
> > hasn't done anything about ceating a transition infrastructure AFAICT.
> > Gentoo has its "eselect python set VERSION" stuff, but it's very
> > dangerous to set to a Python 3 version, as many things go permanently
> > wonky once you do.  (So far I've been able to work around problems
> > this creates, but it's not much fun.)  I have no experience with this
> > in Debian, Red Hat (and derivatives) or *BSD, but I have to suspect
> > they're no better.  (Well, maybe Red Hat has learned from its 1.5.2
> > experience! :-)
> > 
> For Fedora (and currently, Red Hat is based on Fedora -- a little more about
> that later, though), we have parallel python2 and python3 stacks.  As time
> goes on we've slowly brought more python-3 compatible modules onto the
> python3 stack (I believe someone had the goal a year and a half ago to get
> a complete pylons web development stack running on python3 on Fedora which
> brought a lot of packages forward).

FWIW, current status of Fedora's Python 3 stack can be seen here:
and that page may be of interest to other distributions - I know of at
least one other distribution that's screen-scraping it ;)

More information about the Python-Dev mailing list