Update the Python 3 stack in Fedora from 3.1 to 3.2
- Name: Dave Malcolm
- Email: <firstname.lastname@example.org>
- Targeted release: Fedora 25
- Last updated: 2011-02-14
- Percentage of completion: 90%
Upstream has released 3.2rc3.
Latest in F15 is 3.2rc2. The upstream release schedule currently has final release on 2011-02-19
- verify status of bytecode. Last change seems to have been in upstream revision 84501, which changed the magic number of .pyc/.pyo files to 3170
- rpmlint is using the wrong magic number for 3.2 .pyc/.pyo files.
- teach the "file" command about 3.2's .pyc/.pyo files
Python 3.2 is the latest release of the Python 3 language. Although the core language has been frozen (to allow the non-CPython implementation of Python to "catch up" with CPython), 3.2 contains hundreds of fixes and tweaks throughout, a few of which I'm responsible for ;-)
Benefit to Fedora
Fedora aims to showcase the latest in free and open source software - we should have the most recent release of Python 3.
The core python3 src.rpm has been rebuilt with the latest 3.2 code.
https://fedoraproject.org/wiki/Python3#Python_3_already_in_Fedora indicates that as of Fedora 15 there are currently about 25-30 extension modules for Python 3 available via RPM. These will need rebuilding to cope with disk layout changes, and for the latest .pyc/.pyo bytecode format. I believe that the Fedora 15 mass rebuild will cover this; I will do any remaining rebuilds as necessary before the release. Many have already been done by package maintainers.
How To Test
Interested testers do not need special hardware. If you have a favorite Python 3 script, module, or application, please test it with Python 3.2 and verify that it still works as you expect.
My own test plan:
- Smoketest of the interpreter
- Run the upstream regression test suite (this is done during %check)
Users should not notice any difference, other than the availability of the 3.2 interpreter
See notes in "Scope" above.
The bulk of the work is done, and appears stable.
The system Python 3 stack has been upgraded to 3.2 (the system Python 2 stack remains at 2.7), bringing in hundreds of fixes and tweaks; for a list of changes see http://docs.python.org/dev/whatsnew/3.2.html