Here's an update on the Python 3.5 transition ongoing in Wily. To summarize, in 15.10, we have enabled Python 3.5 as a supported Python 3 version, with Python 3.4 still as the default. Early in X we plan on switching to Python 3.5 as the default and at some point dropping Python 3.4. We currently plan on only carrying Python 3.5 into the next LTS.
For the most part, code that's compatible with Python 3.4 should work with Python 3.5 but there are a few gotchas to watch. The ones I've seen in the wild in the Ubuntu and Debian archives (as well as my own upstreams) are summarized here: https://wiki.python.org/moin/PortingToPy3k/34to35 That's not everything that might trip you up, but it's a good start. Don't forget that Python 3.5 final is scheduled for release in just 9 days, and I expect that to be met. Doko will likely upload 3.5 final to Wily when it's released. https://www.python.org/dev/peps/pep-0478/ How does Ubuntu look currently? Of course, the Wily archive has full details, with Python 3.5 as supported, but we also have a PPA that is tracking package builds with Python 3.5 as default. Full details are available here: https://launchpad.net/~pythoneers/+archive/ubuntu/py35asdefault/+packages We're especially interested in the status of packages seeded in ubuntu, ubuntu-core, ubuntu-desktop-next, ubuntu-server, and ubuntu-touch. The following summary report[*] shows FTBFS in these seeds, and also the other *buntu flavors, as shown by seeded-in-ubuntu(1). Bugs have been assigned to all FTBFS, and manually attached here. Not all FTBFS are Python 3.5-as-default related. Some package haven't been rebuilt in a while and would fail in Wily anyway, for various reasons. See the bugs for details. Some packages upstream are still not compatible with Python 3.5. If you have expertise or interest in any of these packages, or are just looking to help with the health of the archive, or the coming LTS plans for Python, please get in touch! Follow up here, or ping me in IRC (nick: barry). Enjoy! -Barry Overall PPA success rate: 943 of 1089 - 86.59% Seeded packages requiring a fix: autopilot 1.5.1+15.10.20150902.1-0ubuntu1 Failed to build LP: #1488715 FTBFS in PPA only due to testtools in PPA failures boost1.58 1.58.0+dfsg-0ubuntu5 Build for superseded Source It actually builds, though it registers as a failure due to "Build for superseded Source". checkbox 0.18-0ubuntu2 Failed to build LP: #1491590 deja-dup 34.0-1ubuntu3 Failed to build FTBFS in PPA only due to libunity rebuilt in PPA FTBFS. genshi 0.7-3 Failed to build LP: #1492359 - in progress in Debian libunity 7.1.4+14.10.20140808-0ubuntu1 Failed to build LP: #1491542 Built in archive, would actually fail if rebuilt. ply 3.4-5 Failed to build LP: #1491620 pyjunitxml 0.6-1.1build1 Failed to build LP: #1491635 python-babel 1.3+dfsg.1-5 Failed to build LP: #1491878 python-cliff 1.13.0-0ubuntu1 Failed to build LP: #1491888 python-django 1.7.9-1ubuntu4 Failed to build Requires Django 1.8 transition, which we won't get to in Wily. We should just version pin << 3.5 for any Django package needing rebuilds. python-testtools 1.4.0-0ubuntu1 Failed to build LP: #1491874 and LP: #1488710 Would FTBFS in main archive if rebuilt. Upstream 1.8.0 doesn't help. ubiquity 2.21.27 Failed to build LP: #1492261 ubuntu-push 0.68+15.10.20150814.1-0ubuntu1 Failed to build LP: #1475612 unity-scopes-shell 0.5.5+15.10.20150826-0ubuntu1 Failed to build LP: #1492287 Additional FIXME report for seed edubuntu cssutils 1.0-2 Failed to build LP: #1492289 gramps 4.2.0~dfsg-1 Failed to build LP: #1492304 pykde4 4:4.14.2-0ubuntu4 Failed to build LP: #1492332 Additional FIXME report for seed kubuntu kubuntu-driver-manager 15.04ubuntu3 Failed to build LP: #1474539 pykde4 4:4.14.2-0ubuntu4 Failed to build LP: #1492332 Additional FIXME report for seed xubuntu menulibre 2.1.0-0ubuntu1 Failed to build LP: #1492353 mugshot 0.2.5-1 Failed to build LP: #1492355 [*] Generated by this script: https://git.launchpad.net/~barry/+git/ppascripts/tree/ppa-status
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