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["G.M." <1884295@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Trying to convert a book to pdf with calibre 4.99.4 results in error:

ebook-convert TMcGrath-Clean\ Code\ Summary_Agile\ Software\ Craftmanship\ Guidelines-Developer\ Deconstructed\ \(2016\).azw3 TMcGrath-Clean\ Code\ Summary_Agile\ Software\ Craftmanship\ Guidelines-Developer\ Deconstructed\ \(2016\).pdf
1% Converting input to HTML...
InputFormatPlugin: MOBI Input running
on /home/gmuller/Downloads/TOPRINT/TMcGrath-Clean Code Summary_Agile Software Craftmanship Guidelines-Developer Deconstructed (2016).azw3
Found KF8 MOBI of type 'standalone'
Parsing all content...
34% Running transforms on e-book...
Merging user specified metadata...
Detecting structure...
Flattening CSS and remapping font sizes...
Source base font size is 11.95425pt
Removing fake margins...
Cleaning up manifest...
Trimming unused files from manifest...
Trimming 'images/00003.jpeg' from manifest
Creating PDF Output...
67% Running PDF Output plugin
The cover image has an id != "cover". Renaming to work around bug in Nook Color
68% Parsed all content for markup transformation
Link anchor: text/part0000.html#1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0001.html#UGI1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0002.html#1T141-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0003.html#2RHM1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0004.html#3Q281-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0005.html#4OIQ1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0006.html#5N3C1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0007.html#6LJU1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0008.html#7K4G1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0009.html#8IL21-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0010.html#9H5K1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0011.html#AFM61-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0012.html#BE6O1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0013.html#CCNA1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0014.html#DB7S1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0015.html#E9OE1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0016.html#F8901-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0017.html#G6PI1-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0018.html#H5A41-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0019.html#I3QM2-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
Link anchor: text/part0020.html#J2B81-f22ab0014c924831a14cdb6c59d26a4e not found, linking to top of file instead
70% Completed markup transformation
WebEngineContext used before QtWebEngine::initialize() or OpenGL context creation failed.
Traceback (most recent call last):
  File "/usr/bin/ebook-convert", line 20, in <module>
    sys.exit(main())
  File "/usr/lib/calibre/calibre/ebooks/conversion/cli.py", line 401, in main
    plumber.run()
  File "/usr/lib/calibre/calibre/ebooks/conversion/plumber.py", line 1274, in run
    self.output_plugin.convert(self.oeb, self.output, self.input_plugin,
  File "/usr/lib/calibre/calibre/ebooks/conversion/plugins/pdf_output.py", line 188, in convert
    self.convert_text(oeb_book)
  File "/usr/lib/calibre/calibre/ebooks/conversion/plugins/pdf_output.py", line 253, in convert_text
    convert(
  File "/usr/lib/calibre/calibre/ebooks/pdf/html_writer.py", line 1195, in convert
    manager = RenderManager(opts, log, container.root)
  File "/usr/lib/calibre/calibre/ebooks/pdf/html_writer.py", line 279, in __init__
    ans.setUrlRequestInterceptor(self.interceptor)
AttributeError: 'QWebEngineProfile' object has no attribute 'setUrlRequestInterceptor'


According to https://bugs.launchpad.net/calibre/+bug/1850835 it's because the maintainer of the package did not sync the calibre version and the Qt requirement (Qt 5.13 is required for calibre 4.99.4).

** Affects: calibre (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1884295

Title:
  AttributeError: 'QWebEngineProfile' object has no attribute
  'setUrlRequestInterceptor'

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