[SOLVED] Испортился portage 2.2 после последнего обновления

portage-2.2.0_alpha51 работал отлично, сегодня захотелось ему обновиться при emerge -uDavN world до 2.2.0_alpha52. После чего он перестал работать, ругаясь на питон, как я понял:

Traceback (most recent call last):
  File "/usr/bin/emerge", line 43, in <module>
    retval = emerge_main()
  File "/usr/lib64/portage/pym/_emerge/main.py", line 1939, in emerge_main
    myopts, myaction, myfiles, spinner)
  File "/usr/lib64/portage/pym/_emerge/actions.py", line 438, in action_build
    retval = mergetask.merge()
  File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1073, in merge
    rval = self._merge()
  File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1427, in _merge
    self._main_loop()
  File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1571, in _main_loop
    self._poll_loop()
  File "/usr/lib64/portage/pym/_emerge/PollScheduler.py", line 193, in _poll_loop
    handler(f, event)
  File "/usr/lib64/portage/pym/_emerge/SpawnProcess.py", line 240, in _dummy_handler
    self._unregister_if_appropriate(event)
  File "/usr/lib64/portage/pym/_emerge/AbstractPollTask.py", line 61, in _unregister_if_appropriate
    self.wait()
  File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 46, in wait
    self._wait_hook()
  File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 128, in _wait_hook
    self._exit_listener_stack.pop()(self)
  File "/usr/lib64/portage/pym/_emerge/EbuildPhase.py", line 238, in _ebuild_exit
    self.wait()
  File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 46, in wait
    self._wait_hook()
  File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 128, in _wait_hook
    self._exit_listener_stack.pop()(self)
  File "/usr/lib64/portage/pym/_emerge/EbuildBuild.py", line 195, in _pre_clean_exit
    self._fetch_exit(fetcher)
  File "/usr/lib64/portage/pym/_emerge/EbuildBuild.py", line 247, in _fetch_exit
    self._start_task(build, self._build_exit)
  File "/usr/lib64/portage/pym/_emerge/CompositeTask.py", line 146, in _start_task
    task.start()
  File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 24, in start
    self._start()
  File "/usr/lib64/portage/pym/_emerge/EbuildExecuter.py", line 55, in _start
    self.scheduler.scheduleSetup(setup_phase)
  File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 573, in _schedule_setup
    self._schedule()
  File "/usr/lib64/portage/pym/_emerge/PollScheduler.py", line 104, in _schedule
    return self._schedule_tasks()
  File "/usr/lib64/portage/pym/_emerge/Scheduler.py", line 1609, in _schedule_tasks
    if q.schedule():
  File "/usr/lib64/portage/pym/_emerge/SequentialTaskQueue.py", line 55, in schedule
    task.start()
  File "/usr/lib64/portage/pym/_emerge/AsynchronousTask.py", line 24, in start
    self._start()
  File "/usr/lib64/portage/pym/_emerge/EbuildPhase.py", line 77, in _start
    maint_str = metadata_xml.format_maintainer_string()
  File "/usr/lib64/portage/pym/portage/xml/metadata.py", line 355, in format_maintainer_string
    for maintainer in self.maintainers():
  File "/usr/lib64/portage/pym/portage/xml/metadata.py", line 305, in maintainers
    for node in self._xml_tree.findall('maintainer'))
  File "/usr/lib64/python3.1/xml/etree/ElementTree.py", line 639, in findall
    assert self._root is not None
AssertionError

Последние месяцы собирал с флагом python3, хотя в системе главный по eselect-у 2.71, однако всё работадо нормально. python-updater пробовал - говорит всё в порядке. Откатиться не могу, т.к. для этого нужен работающий portage.
Что делать? Помогите, пожалуйста!