Changes/Platform Python Stack/Roadmap

Platform Python Stack: Roamap

There should be a copr repo where this all happens. In order to have permission, it has been created in the python-sig group: https://copr.fedorainfracloud.org/coprs/g/python/platform-python-stack/

• create the platform-python package
  • by cstratak
  • stdlib and site-packages installs to /usr/lib(64)/platform-python3.6
    • done
  • /usr/libexec/platform-python
    • done
  • python3-config to platform-python-config, make it work
    • excluded the python-config binaries for now
  • libpython.so to libplatform-python.so, make it work
    • done
  • probably drop tkinter and tools until proven needed
    • stalled, it can be done later
  • Make Platform-Python build without bootstrapping:
    • drop dependency on setuptools, pip, wheel
    • undo de-bundling of setuptools and pip, but delete the bundled pip wheel, making Python crash when -m venv is invoked
      • pip wheel is removed, setuptools is there
      • LATER make it not crash, but report a decent error message such as "Creating virtual environment with platform-python is not supported and is disabled. Use python3 instead."
  • Enable the test suite
    • Two test case failures so far
      • One related to systemd-nspawn and the other to sysconfig, both can be safely skipped
  • Enable profile guided optimizations and link time optimizations
    • Done
  • /usr/libexec/platform-python3.X
    • Done

• create macros from the example specfile
  • by torsava
  • done
  • put them to python-rpm-macros
  • https://github.com/torsava/python-rpm-macros/tree/private-torsava-master

• adjust the python(abi) requires/provides mechanism
  • by churchyard / mhroncok
  • done
  • patch at https://github.com/hroncok/rpm/commits/platform-python
  • it should require/provide platform-python(abi) for stuff in /usr/lib(64)/platform-python
  • the code lives in the rpm package: https://github.com/rpm-software-management/rpm/blob/master/scripts/pythondeps.sh
  • this is part of python-rpm-generators package!
  • LATER make python-rpm-generators run on platform python MAYBE?

• adjust pybytecompile script
  • should bytecompile stuff in /usr/lib/platform-python3.X with /usr/libexec/platform-python3.X
  • by churchyard / mhroncok
  • done
  • patch at https://github.com/hroncok/rpm/commits/platform-python

• start adding platform-python subpackages up until dnf
  • done
  • add bcond conditionals for all 3 subpackages: %bcond_without python2, python3, platform_python
  • if present, remove the system python abi macro and/or shabeng adjusting for system-python
  • check if the platform-python(abi) works

• adjust dnf
  • make /usr/bin/dnf use /usr/libexec/platform-python, make it require platform-python-dnf instead of python3-dnf
  • done

• remove system-python
  • by churchyard / mhroncok
  • PR https://src.fedoraproject.org/rpms/python3/pull-request/2

• grep the specfiles for system-python abi macro and or shebang requirement and remove it
  • http://pkgs.fedoraproject.org/repo/rpm-specs-latest.tar.xz
  • there are packages not covered by previous steps but using it
  • probably not worth doing in copr, wait for rawhide
  • (following grep matches might be from changelogs)

   $ grep --files-with-matches system-python *
   dnf.spec
   freeipa.spec
   gtk2.spec
   python-rpm-macros.spec
   python-six.spec
   python-virtualenvcontext.spec
   python3.spec
   rpm.spec

   $ grep --files-with-matches system_python *
   dnf.spec
   libcomps.spec
   librepo.spec
   python-iniparse.spec
   python-pygpgme.spec
   rpm.spec

   $ dnf repoquery --whatrequires system-python
   anaconda-core-0:27.20-1.fc27.x86_64
   python3-pygpgme-0:0.3-24.fc27.x86_64

   $ dnf repoquery --whatrequires 'system-python(abi)'
   python3-pygpgme-0:0.3-24.fc27.x86_64

We should probably also provide/obsolete system-python and system-python abi from python3 package and system-python-libs form python3-libs

• cleanup
  • remove '/usr/lib64/python36.zip' from platform-python's sys.path
  • Revisit bundled setuptools

Bootstrap order for Fedora

As we build stuff in copr, record it here so we know how to build it in Fedora:

https://etherpad.gnome.org/p/Fedora-Platform-Python-Bootstrap