[gentoo-dev] Python 3.8 migration reminder

[Michał Górny]

Hello, developers.

The Python team would like to remind you that the switch to Python 3.8
as the default target is planned for 2020-12-01.  Please make sure to
migrate your packages to give our users a better transition experience.

The migration list is at [1], stabilization is at [2].

In other reminders:

a. Python 2.7->3 (except for build-time use without dependencies)
migration deadline is 2021-01-01.  At that point, the remaining packages
(read: renpy) will be last rited.  Once it's gone, the old versions of
any other packages not yet cleaned up (if any) will be removed
and the target will be disabled except for python-any-r1.

b. Python 3.6->3.7 migration deadline is also 2021-01-01.  The remaining
packages [3] (stablereq list at [4]) will be last rited then, or have
their Python support removed.  Once they're gone, python3_6 target will
probably be removed (it's already PITA due to IPython stack removing
support for Python 3.6).

c. With big thanks to Sam for taking care of it, Python 3.9.0 is now
stable and the target is now unmasked.  I think it's the first time we
manage it one month after the release and hopefully it'd make things
easier in the future.  We don't have any planned dates but maybe we
could switch to 3.9 mid-2021, as we're initially planning to kill 3.7
then.  Nice migration lists for 3.8->3.9 at [5], [6].

The full timeline can be found at [7].

Thanks and enjoy!


[1] https://qa-reports.gentoo.org/output/gpyutils/37-to-38.txt
[2] https://qa-reports.gentoo.org/output/gpyutils/37-to-38-stablereq.txt
[3] https://qa-reports.gentoo.org/output/gpyutils/37-to-38.txt
[4] https://qa-reports.gentoo.org/output/gpyutils/37-to-38-stablereq.txt
[5] https://qa-reports.gentoo.org/output/gpyutils/38-to-39.txt
[6] https://qa-reports.gentoo.org/output/gpyutils/38-to-39-stablereq.txt
[7] https://wiki.gentoo.org/wiki/Project:Python/Implementations

-- 
Best regards,
Michał Górny