With PySide2 it no longer core dumps, but it seems opentimelineio is compiled against a very new Qt.

$ otioview /media/gga/Datos/movies/test.edl
Traceback (most recent call last):
  File "/home/gga/.local/bin/otioview", line 11, in <module>
    load_entry_point('OpenTimelineIO==0.12.1', 'console_scripts', 'otioview')()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 480, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2693, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2324, in load
    return self.resolve()
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2330, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/home/gga/.local/lib/python2.7/site-packages/opentimelineview/__init__.py", line 27, in <module>
    from . import (
  File "/home/gga/.local/lib/python2.7/site-packages/opentimelineview/details_widget.py", line 25, in <module>
    from PySide2 import QtWidgets, QtGui, QtCore
ImportError: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5.14' not found (required by /home/gga/.local/lib/python2.7/site-packages/PySide2/libpyside2-python2.7.so.5.14)

$ ll  /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
lrwxrwxrwx 1 root root 19 feb  7 12:41 /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 -> libQt5Core.so.5.9.5

--
Gonzalo Garramuño