Я так понял там косяк в питоновских скриптах. Но гугление не помогло :(
[admin@altk8 ~]$ pitivi
GLib-GIO-Message: Using the 'memory' GSettings backend. Your settings will not be saved or shared with other applications.
Traceback (most recent call last):
File "/usr/bin/pitivi", line 144, in <module>
_run_pitivi()
File "/usr/bin/pitivi", line 128, in _run_pitivi
from pitivi import application
File "/usr/lib64/pitivi/python/pitivi/application.py", line 34, in <module>
from pitivi.mainwindow import MainWindow
File "/usr/lib64/pitivi/python/pitivi/mainwindow.py", line 47, in <module>
from pitivi.timeline.timeline import TimelineContainer
File "/usr/lib64/pitivi/python/pitivi/timeline/timeline.py", line 34, in <module>
from pitivi.timeline.elements import Clip
File "/usr/lib64/pitivi/python/pitivi/timeline/elements.py", line 31, in <module>
from matplotlib.backends.backend_gtk3cairo import FigureCanvasGTK3Cairo as FigureCanvas
File "/usr/lib64/python3/site-packages/matplotlib/backends/backend_gtk3cairo.py", line 7, in <module>
from . import backend_cairo
ImportError: cannot import name 'backend_cairo'
[admin@altk8 ~]$ 5~