[Conversion Plugin] KFX Input

[laxarus]

Updated to the 2.13.0 and I started getting this error.

Even the books I was able to convert from KFX to epub without problem started giving this error.
What is wrong here?
I am trying to find an older version of the KFX Input to test but cannot find it anywhere.

calibre, version 7.12.0
ERROR: Unhandled exception: <b>ConstraintError</b>:ConstraintError: Foreign key violation: tags is still referenced

calibre 7.12 embedded-python: True
Windows-10-10.0.22631-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.22631')
Python 3.11.5
Windows: ('10', '10.0.22631', 'SP0', 'Multiprocessor Free')
Interface language: None
EXE path: C:\Program Files\Calibre2\calibre.exe
Successfully initialized third party plugins: Gather KFX-ZIP (from KFX Input) (2, 13, 0) && DeDRM (10, 0, 9) && Package KFX (from KFX Input) (2, 13, 0) && Embed Comic Metadata (1, 6, 6) && EpubMerge (2, 18, 0) && Goodreads (1, 8, 2) && Goodreads Sync (1, 16, 8) && KFX metadata reader (from KFX Input) (2, 13, 0) && From KFX (2, 13, 0) && KFX Input (2, 13, 0) && Set KFX metadata (from KFX Output) (2, 8, 0) && KFX Output (2, 8, 0) && Manage Series (1, 5, 2)
Traceback (most recent call last):
File "calibre\gui2\convert\single.py", line 304, in accept
File "calibre\gui2\convert\metadata.py", line 256, in pre_commit_check
File "calibre\db\cache.py", line 85, in call_func_with_lock
File "calibre\db\cache.py", line 1634, in set_field
File "calibre\db\write.py", line 572, in set_books
File "calibre\db\write.py", line 491, in many_many
File "calibre\db\backend.py", line 1159, in executemany
File "C:\t\t\apsw-42s16m2x\src\cursor.c", line 240, in resetcursor
apsw.ConstraintError: ConstraintError: Foreign key violation: tags is still referenced

[laxarus]

uhm. Nevermind, I found out the issue which was totally unrelated to KFX. For future reference to anyone who might come across this, the readarr is sharing the library with calibre and for some reason, it is preventing the conversion. Stopped readarr docker container and tried converting.

[jhowell]

Version 2.14.0 - 19 Jun 2024

Fix incorrect handling of local_delta_fragments in Scribe notebooks. (Fixes "Book appears to have KFX containers from multiple books. (duplicate fragments)")

[tomsem]

So I finally worked out how to install the necessary components to be able to decode and import KFX using Kindle Classic on macOS. I have been just doing AZW3 download, but that doesn't work for Print Replica, and I have some number of these in my Kindle Library. So thank you for your work! (Now I just need to find the rest of them so I can add those to calibre as well)

So I have a functional KFX, and have converted to PDF and fixed layout ePub using From KFX.

A couple of questions:

The PDF has no table of contents (PDF outline items or Bookmarks). I have to reproduce them manually. 'It would be nice' if KFX Input could add these. It looks like you are using PyPDF, which I believe can do this.

The fixed layout ePub has a table of contents, but the text is not searchable or selectable.

I thought I had succeeded awhile back in generating a toy fixed layout ePub with InDesign that had these properties, but just tried it again, and the text is searchable, but not selectable.

The only fixed layout ePubs I have laying around are those generated for comics/manga, so I don't know what I should be expecting.

[sashsz]

Amazon published some new update to Kindle and the new books seem to not be able to get unprotected. I used to use LD Player for this purpose. Now it doesn't work.
What I noticed is that the new book files are .kfx. There is some new file called amzn1.drm-voucher.v1. I think there might be the key to unlock the kfx archive file with the book contents.