On Fri, 2013-07-19 at 10:17 +0100, Daniel P. Berrange wrote: > On Fri, Jul 19, 2013 at 08:20:02AM +0200, Marcela Mašláňová wrote: > > On 07/19/2013 05:44 AM, Toshio Kuratomi wrote: > > > > > >On Jul 18, 2013 5:42 PM, "Michael Catanzaro" <mike.catanzaro@xxxxxxxxx > > ><mailto:mike.catanzaro@xxxxxxxxx>> wrote: > > > > > > > > On Thu, 2013-07-18 at 09:53 -0700, Toshio Kuratomi wrote: > > > > > /usr/bin/python should refer to python2 -- > > > > > http://www.python.org/dev/peps/pep-0394/ I'd be -1 to changing this > > > > But when python2 is no longer installed by default, surely you want to > > > > get a python prompt when you type 'python'? > > > > > >Yes, and for a long time, I'm going to want to get a python2 prompt. > > >Which means installing the package for python2, not having python3 start > > >on that case. > > > > > > > > > > > Why do you want to use old version as default? That's very > > conservative approach for Fedora ;-) > > This is not just about porting packages that Fedora is shipping. There are > a quadrillion and one random scripts out in the wild with #!/usr/bin/python > in them, that only work with python2. If Fedora makes /usr/bin/python be a > python3 interpretor, we'll break pretty much all of them. I don't think we > want to be doing that for a very long time yet, if ever. > > Far better to encourage people to explicitly use /usr/bin/python2 and > /usr/bin/python3 explicitly and discourage any use of plain /usr/bin/python, > but definitely not change the semantics of the latter. > > > Upstream plans to support it until 2015 (maybe little longer). > > Fedora needs to be prepared for such step, so it's the right time to > > start working on it. > > Given the amount of python2 code out there, I wouldn't be at all surprised > if someone steps up to maintain python2 beyond the date at which its > current maintainer ceases work. Of course such maintainence work would > likely be important bug fixes & security updates only, not feature work. > > So while I encourage a Fedora effort to get onto Python3 by default, > well before 2015, I don't think we should assume that Python2 support > is definitely going to stop in 2015. +1 Breaking completely needlessly backwards compatibility this way is really not a good idea. -- Tomas Mraz No matter how far down the wrong road you've gone, turn back. Turkish proverb -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
