Python 3.9 (not so) mini mass rebuilds and when they will/can happen
Hello.
Kevin and Smooge, you are CCed in case you have some concerns regarding the data
centre move.
Jitka and Zuzka, you are CCed because you plan mini mass rebuilds of your own
(Perl and Node.js).
Ben, you are CCed because I considered it a good idea.
Python 3.9.0b1 was released earlier this week and we are running test rebuilds
in Copr. Things are going suspiciously well so far, except for some critical
stuff -- but we have that covered for now.
Hopefully nobody decides to upgrade something major right now :P
If everything goes extremely well, I expect us to start rebuilding the initial
bootstrap sequence (438 srpms) in Koji side tag this week, the remaining
packages (2733) the next week. We expect some packages to fail (~200-300) and
merge the side tag, so it's not open too long. We can help firefight things if
this blocks anybody.
There are possible followup rebuilds in play for two particular reasons:
1) The ABI can change between beta releases of Python and all arched Python
packages (661) will need a rebuild.
This can happen (but doesn't have to) at:
- beta 2: 2020-06-08+
- beta 3: 2020-06-29+
- beta 4: 2020-07-20+
Source: https://www.python.org/dev/peps/pep-0596/#schedule
Anytime during the release cycle, the format (magic number) of bytecode cache
(.pyc files) can change. The problems with that are not rawhide-critical, but we
don't want to ship wrong bytecode cache in Fedora 33 GA. Hence we'll check the
numbers prior beta freeze (2020-08-25) and rebuild what's needed (can be
anything between 0 and 3000).
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok