Hi, On 12/05/2014 03:08 PM, Bohuslav Kabrda wrote: > ----- Original Message ----- >> Hi, >> >> On 12/04/2014 02:30 AM, Matthew Miller wrote: >>> On Wed, Dec 03, 2014 at 08:13:42PM +0100, Marcin Juszkiewicz wrote: >>>> When I worked at Canonical there was a goal to move both internal and >>>> public tools to Python 3.x version. IIRC started somewhere around 12.04 >>>> and today when you look at Ubuntu Touch you will not find Python 2.7 >>>> there. Similar with other tools. >>>> Can it be done? Maybe not in a month but who knows - f22 cycle? >>> >>> Take a look at >>> <http://fedoraproject.org/wiki/Changes/Python_3_as_Default> for some >>> work in progress. >>> >> Since Marcin specifically mentioned tooling -- is there a separate place >> where we can document the coding issues involved? e.g. best practices >> (should we use python-six as a compatibility layer? etc.) > > AFAIK there's not a Fedora specific place for best practises around py3 porting. I myself consider these resources great: > > https://docs.python.org/dev/howto/pyporting.html (upstream docs on porting Python code) > https://docs.python.org/3/howto/cporting.html (upstream docs on porting Python C extension) > http://python3porting.com/ (a great reference for both C and Python porting, including tons of examples) > http://www.wefearchange.org/2011/12/lessons-in-porting-to-python-3.html (a blogpost on how python-dbus was ported, lots of great gotchas there) > http://lucumr.pocoo.org/2013/7/2/the-updated-guide-to-unicode/ (interesting notes on work with unicode) > > https://wiki.gnome.org/PyGObject/IntrospectionPorting (porting from PyGTK to PyGObject Introspection) > http://overtag.dk/wordpress/2013/01/first-impressions-of-gtk3-migration-in-python/ (same as above) > > From the tools/libraries that can be used: > - https://docs.python.org/3.4/library/2to3.html (package python3-tools) is a tool that you run on your code in order to *move* it to Python 3 (e.g. doesn't guarantee backwards compat) > - http://python-modernize.readthedocs.org/en/latest/ (package python-modernize) - like 2to3, but tries to maintain backwards compat with Python 2.6+ > - https://pythonhosted.org/six/ (package python{,3}-six) - importable library that helps write code compatible with both Python 2 and 3 > > And you can also have a look at my presentation from this year's Flock, it speaks about basic differences, porting and how people can help with porting: > https://bkabrda.fedorapeople.org/py3-as-default.pdf > > Hope this helps! > Thanks, it does. So it's up to each internal tool's maintainers to make them Python 3 compatible and then generate Python 3 subpackages (like python3-dnf), right? Best regards, -- Michel Alexandre Salim Fedora Project Contributor: http://fedoraproject.org/ Email: salimma@xxxxxxxxxxxxxxxxx | GPG key ID: A36A937A IDs: keybase.io/michel-slm | IRC: michel_slm@xxxxxxxxxxxxxxxx () ascii ribbon campaign - against html e-mail /\ www.asciiribbon.org - against proprietary attachments
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