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Python 3 for Critical Components


The Python components at the very heart of Fedora have been migrated from Python 2 to Python 3. This includes the system installer (anaconda) and the updater (yum).


  • Email: <>

Current status

  • Targeted release: [[Releases/<number> | Fedora <number> ]]
  • Last updated: 2010-11-17
  • Percentage of completion: 0%

Detailed Description

Fedora's installer, Anaconda, and update tools (yum) are implemented in Python. Migrating them from Python 2 to Python 3 requires them both to be migrated together, along with any modules they use. It also requires all yum plugins to be migrated.

This is a big task, and may take several Fedora releases to accomplish, laying the groundwork in, say, Fedora 15 by porting some of the dependencies, and eventually "flicking the switch" in a later release (say, Fedora 16)

TODO: create huge tracker bug covering the various dependencies

TODO: who is to do this work?

TODO: do each of the upstreams want to do this? anaconda? yum? how will each one do it?

Benefit to Fedora


  • Anaconda
  • pyparted
  • yum
  • pykickstart
  • pygobject3
  • python-pyblock
  • python-urlgrabber
  • python-nose
  • rpm-python
  • python-meh
  • python-babel
  • libuser-python
  • newt-python
  • python-cryptsetup
  • dbus-python
  • cracklib-python
  • python-bugzilla
  • python-nss
  • pytz
  • libselinux-python

How To Test

User Experience


Contingency Plan


Release Notes

Comments and Discussion