Focal upgrade broke Clibre

[Tony Arnold]

After upgrading to Focal, I can no long run Calibre. Running from the
terminal gives:

Traceback (most recent call last):  File "/usr/bin/calibre", line 20,
in <module>    sys.exit(calibre())  File
"/usr/lib/calibre/calibre/gui_launch.py", line 73, in
calibre    main(args)  File "/usr/lib/calibre/calibre/gui2/main.py",
line 529, in main    app, opts, args = init_qt(args)  File
"/usr/lib/calibre/calibre/gui2/main.py", line 114, in init_qt    app =
Application(args, override_program_name=override,
windows_app_uid=MAIN_APP_UID)  File
"/usr/lib/calibre/calibre/gui2/__init__.py", line 875, in
__init__    raise RuntimeError('Failed to load the progress_indicator C
extension, with error: {}'.format(pi_err))RuntimeError: Failed to load
the progress_indicator C extension, with error: PyCapsule_GetPointer
called with incorrect name
I've google'd this and only found a German discussion group whose best
suggestion is to download Calibre rather than use the repo version.
Indeed this way is recommended on the Claibre web site.

Seems very non Linuxesk to do it that way so was wondering if anyone
else had seen this or got any other solutions?

Regards,
Tony.
-- 
Tony Arnold MBCS, CITP | Senior IT Security Analyst | Directorate of IT Services | G64, Kilburn Building | The University of Manchester | Manchester M13 9PL | T: +44 161 275 6093 | M: +44 773 330 0039
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