2008/12/9 Toshio Kuratomi <a.badger@xxxxxxxxx>: > Arthur Pemberton wrote: >> On Mon, Dec 8, 2008 at 4:19 PM, Simo Sorce <ssorce@xxxxxxxxxx> wrote: >>> I would personally strongly consider having 2.x and 3.0 parallel >>> installable ... >> >> >> Isn't Python designed to be parallel installable? >> >> > Yes it is. We just want to avoid having to do that if possible because > it could be very painful to do so. > > Here's the fear: > > python2.x > - python-libfoo-2.0 > - spiffy-app-1.2 > > python3.x > - python-libfoo-2.1 > - excellent-app-1.1 > > python-libfoo-2.0 uses the 2.x API. python-libfoo-2.1 uses the > python-3.x API. In order to get spiffy-app and excellent-app into the > distro we need to have both python2.x and python3.x versions of the > library installed. > > Now a security fix is released for python-libfoo-2.1. Does that also > affect python-libfoo-2.0? Can we backport the fix or are the py2.x and > py3.x versions too different? Do we need to have more python coders > available to fix these errors? > > Here's the ideal (For Fedora, once again, this does not address > mpdehaan's concerns): > > python2.6 > - python-libfoo-2.1 (with from __future__ import *) > - spiffy-app-1.2 > - excellent-app-1.1 (with from __future__ import *) > > If this is possible we can maintain one version of python and one > version of the library. The apps can both consume the library even > though one was coded for python-3.x and the other was coded for python-2.x. > > Is this going to be possible or will deepseated assumptions in the new > language prevent this? That's something we can't know for sure until we > actually start trying to run code in mixed mode like this. Some people > had great luck with this earlier in the year[1]_ but I think there were > changes to the stdlibrary since then and I didn't trust that the author > had done a thorough job with the unicode/string/bytes testing. > > So let me reiterate: > > * python-3.x will not be in Fedora-11 unless it becomes obvious in the > next few weeks that we absolutely must be running it for the next release. > * we need more experience with python-2.6+ & python-3 compatibility > before we decide whether parallel versions of python are necessary. > > .. _[1]: http://python-incompatibility.googlecode.com/svn/trunk/README.txt > > -Toshio Well again. Some people (like Toshio) seem to have a grasp on the matter. All this banter hasn't produced anything more of use. How about forming a temp SIG to take care of this trusting they do the right thing? -- Fedora 9 : sulphur is good for the skin ( www.pembo13.com ) -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
