Package: calibre Version: 2.55.0+dfsg-1 Followup-For: Bug #823134 I also have this problem. It occurs not only when editing a book but also when trying to view a book or do a bunch of other things. It makes this package pretty much unusable for me right now.
The problem seems to be related to a recent python-pyqt5 update to version 5.6. They seem to have helpfully broken the API: "PyQt5.Qt.QUrl.None" is now named "PyQt5.Qt.QUrl.None_" as far as I can see. Great. Maybe there are other problems after fixing this one, too, the upstream changelog for pyqt5 does not mention this from what I can tell at a quick glance. I think upstream doesn't know about this. It is not fixed in their github.com repo and I can't find a bug report. They use Launchpad, though, where I would need to create an account and I barely have time to report this here right now. If somebody with connections to upstream could pass this along? Otherwise I'd have to have a look next week or even later. -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (990, 'testing'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.5.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages calibre depends on: ii calibre-bin 2.55.0+dfsg-1 ii fonts-liberation 1.07.4-1 ii imagemagick 8:6.8.9.9-7+b2 ii libjs-mathjax 2.6.1-1 ii poppler-utils 0.38.0-3 ii python-apsw 3.8.11.1-r1-1+b2 ii python-beautifulsoup 3.2.1-1 ii python-chardet 2.3.0-2 ii python-cherrypy3 3.5.0-2 ii python-cssselect 0.9.1+git90c72b0-1 ii python-cssutils 1.0-4.1 ii python-dateutil 2.4.2-1 ii python-dbus 1.2.4-1 ii python-feedparser 5.1.3-3 ii python-imaging 3.2.0-1 ii python-lxml 3.6.0-1 ii python-markdown 2.6.6-1 ii python-mechanize 1:0.2.5-3 ii python-netifaces 0.10.4-0.1+b2 ii python-pil 3.2.0-1 ii python-pkg-resources 20.10.1-1 ii python-pyparsing 2.0.3+dfsg1-1 ii python-pyqt5 5.6+dfsg-1 ii python-pyqt5.qtsvg 5.6+dfsg-1 ii python-pyqt5.qtwebkit 5.6+dfsg-1 ii python-routes 2.2-1 ii python2.7 2.7.11-8 ii xdg-utils 1.1.1-1 Versions of packages calibre recommends: ii python-dnspython 1.12.0-1 calibre suggests no packages. -- no debconf information
