Problem solved with today updates:
corrado@corrado-x2-hh-1104:~$ apt policy calibre
calibre:
Installed: 5.5.0+dfsg-4
Candidate: 5.5.0+dfsg-4
Version table:
*** 5.5.0+dfsg-4 500
500 http://archive.ubuntu.com/ubuntu hirsute/universe amd64 Packages
500 http://archive.ubuntu.com/ubuntu hirsute/universe i386 Packages
100 /var/lib/dpkg/status
corrado@corrado-x2-hh-1104:~$
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You received this bug notification because you are a member of Edubuntu
Bugsquad, which is subscribed to calibre in Ubuntu.
https://bugs.launchpad.net/bugs/1905409
Title:
calibre crashed with ImportError in __init__():
/usr/lib/calibre/calibre/plugins/progress_indicator.so: undefined
symbol: _Py_FatalErrorFunc
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/calibre/+bug/1905409/+subscriptions
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