Comment 1 for bug 691608

The latest downloaded version from the developer does not have this bug but the Ubuntu distro package does. I tried reinstalling the package and had the same results. Traceback from attempting to open Calibre from a terminal:

 Traceback (most recent call last):
  File "/usr/bin/calibre", line 19, in <module>
    sys.exit(main())
  File "/usr/lib/calibre/calibre/gui2/main.py", line 321, in main
    app, opts, args, actions = init_qt(args)
  File "/usr/lib/calibre/calibre/gui2/main.py", line 40, in init_qt
    from calibre.gui2.ui import Main
  File "/usr/lib/calibre/calibre/gui2/ui.py", line 31, in <module>
    from calibre.gui2.widgets import ProgressIndicator
  File "/usr/lib/calibre/calibre/gui2/widgets.py", line 26, in <module>
    from calibre.gui2.progress_indicator import ProgressIndicator as
 _ProgressIndicator
  File "/usr/lib/calibre/calibre/gui2/progress_indicator/__init__.py",
 line 15, in <module>
    pi_error)
 RuntimeError: Failed to load the Progress Indicator plugin: the sip module
 implements API v8.0 but the progress_indicator module requires API v7.1