Comment 14 for bug 1208129

It's still here. I'm trying to create a clonezilla key with usb-creator-kde (from command line) on trusty.

Here's the trace:

--- Logging error ---
Traceback (most recent call last):
  File "/usr/lib/python3.4/logging/handlers.py", line 71, in emit
    if self.shouldRollover(record):
  File "/usr/lib/python3.4/logging/handlers.py", line 187, in shouldRollover
    msg = "%s\n" % self.format(record)
  File "/usr/lib/python3.4/logging/__init__.py", line 814, in format
    return fmt.format(record)
  File "/usr/lib/python3.4/logging/__init__.py", line 559, in format
    record.exc_text = self.formatException(record.exc_info)
  File "/usr/lib/python3.4/logging/__init__.py", line 509, in formatException
    traceback.print_exception(ei[0], ei[1], tb, None, sio)
  File "/usr/lib/python3.4/traceback.py", line 169, in print_exception
    for line in _format_exception_iter(etype, value, tb, limit, chain):
  File "/usr/lib/python3.4/traceback.py", line 146, in _format_exception_iter
    for value, tb in values:
  File "/usr/lib/python3.4/traceback.py", line 125, in _iter_chain
    context = exc.__context__
AttributeError: 'NoneType' object has no attribute '__context__'
Call stack:
  File "/usr/bin/usb-creator-kde", line 110, in <module>
    sys.exit(app.exec_())
  File "/usr/lib/python3/dist-packages/usbcreator/frontends/kde/frontend.py", line 249, in <lambda>
    lambda: self.__timeout_callback(func, *args))
  File "/usr/lib/python3/dist-packages/usbcreator/frontends/kde/frontend.py", line 226, in __timeout_callback
    active = func(*args)
  File "/usr/lib/python3/dist-packages/usbcreator/frontends/kde/frontend.py", line 104, in test_func
    func()
  File "/usr/lib/python3/dist-packages/usbcreator/frontends/kde/frontend.py", line 48, in <lambda>
    queue.put(lambda: func(*args))
  File "/usr/lib/python3/dist-packages/usbcreator/frontends/kde/frontend.py", line 509, in failure
    self.__fail(message)
  File "/usr/lib/python3/dist-packages/usbcreator/frontends/kde/frontend.py", line 233, in __fail
    logging.exception('Installation failed.')
Message: 'Installation failed.'