On Wed, Jun 10, 2015 at 08:50:14AM -0400, Jan Kurik wrote:
= Proposed System Wide Change: Python 3 as Default =
https://fedoraproject.org/wiki/Changes/Python_3_as_Default
Change owner(s):
* Slavek Kabrda <bkabrda at redhat dot com>
* Matej Stuchlik <mstuchli at redhat dot com>
* Miro Hroncok <mhroncok at redhat dot com>
* Thomas Spura <tomspur at fedoraproject dot org>
* Robert Kuska <rkuska at redhat dot com>
Up until now, Fedora has used Python 2 as the default Python implementation. This change
proposes switching to Python 3. The details of the term "switching" are
explained thoroughly in the Scope section.
== Detailed Description ==
It is currently mature and stable, since it has been under active
development for five years
More than that, I'm sure.
== Scope ==
The main goal is switching to Python 3 as a default, in which state:
* DNF is the default package manager instead of Yum, which only works with Python 2
Does that mean that dnf-3 is going to become the default which is installed as
/usr/bin/dnf?
Will "old" dnf be available as /usr/bin/dnf-2?
Changes in packaging:
* Change definition of default python interpreter to python3.
What does that
mean?
* Change unversioned python macros to python3 (Possibly do that
change in upstream rpm)
Hm, I think that this will break hundreds of packages... Not
everything has
been updated to use %{__python2} or %{__python3}, and of those that haven't been
updated, many probably are not ready for switching to python3. I think it
would be better to avoid a flag day, and simply slowly switch packages
one by one.
* All applications that use only a single python version MUST use
python3 (unless they have a good reason not to do so).
Do you intend to file
bugs for all such packages or notify maintainers
in some other way?
Zbyszek